Home / 1,816.07-2,503.25-1,225.58

Finding the Fourth Proportional to 1,816.07, 2,503.25 and 1,225.58

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Solution

The fourth proportional to 1,816.07, 2,503.25 and 1,225.58 is: 1,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.07 : 2,503.25 = 1,225.58 : x
  2. Step 2: Convert to fraction form
    1,816.07/2,503.25 = 1,225.58/x
  3. Step 3: Cross multiply
    1,816.07x = 2,503.25 × 1,225.58
  4. Step 4: Simplify right side
    1,816.07x = 3,067,914.49
  5. Step 5: Solve for x
    x = 3,067,914.49/1,816.07
  6. Step 6: Final answer
    x = 1,689.32

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Half scale
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Double scale
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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.