Home / 1,436.60-2,154.12-614.36

Finding the Fourth Proportional to 1,436.60, 2,154.12 and 614.36

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Solution

The fourth proportional to 1,436.60, 2,154.12 and 614.36 is: 921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.60 : 2,154.12 = 614.36 : x
  2. Step 2: Convert to fraction form
    1,436.60/2,154.12 = 614.36/x
  3. Step 3: Cross multiply
    1,436.60x = 2,154.12 × 614.36
  4. Step 4: Simplify right side
    1,436.60x = 1,323,405.16
  5. Step 5: Solve for x
    x = 1,323,405.16/1,436.60
  6. Step 6: Final answer
    x = 921.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.