Home / 1,552.34-2,145.31-1,272.14

Finding the Fourth Proportional to 1,552.34, 2,145.31 and 1,272.14

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Solution

The fourth proportional to 1,552.34, 2,145.31 and 1,272.14 is: 1,758.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.34 : 2,145.31 = 1,272.14 : x
  2. Step 2: Convert to fraction form
    1,552.34/2,145.31 = 1,272.14/x
  3. Step 3: Cross multiply
    1,552.34x = 2,145.31 × 1,272.14
  4. Step 4: Simplify right side
    1,552.34x = 2,729,120.76
  5. Step 5: Solve for x
    x = 2,729,120.76/1,552.34
  6. Step 6: Final answer
    x = 1,758.07

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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.