Home / 1,539.28-2,307.46-615.41

Finding the Fourth Proportional to 1,539.28, 2,307.46 and 615.41

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Solution

The fourth proportional to 1,539.28, 2,307.46 and 615.41 is: 922.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.28 : 2,307.46 = 615.41 : x
  2. Step 2: Convert to fraction form
    1,539.28/2,307.46 = 615.41/x
  3. Step 3: Cross multiply
    1,539.28x = 2,307.46 × 615.41
  4. Step 4: Simplify right side
    1,539.28x = 1,420,033.96
  5. Step 5: Solve for x
    x = 1,420,033.96/1,539.28
  6. Step 6: Final answer
    x = 922.53

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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.