Home / 1,809.28-2,497.14-1,145.68

Finding the Fourth Proportional to 1,809.28, 2,497.14 and 1,145.68

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Solution

The fourth proportional to 1,809.28, 2,497.14 and 1,145.68 is: 1,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.28 : 2,497.14 = 1,145.68 : x
  2. Step 2: Convert to fraction form
    1,809.28/2,497.14 = 1,145.68/x
  3. Step 3: Cross multiply
    1,809.28x = 2,497.14 × 1,145.68
  4. Step 4: Simplify right side
    1,809.28x = 2,860,923.36
  5. Step 5: Solve for x
    x = 2,860,923.36/1,809.28
  6. Step 6: Final answer
    x = 1,581.25

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,810.28, 2,498.52 and 1,146.68
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.