Home / 1,539.20-2,307.26-1,052.40

Finding the Fourth Proportional to 1,539.20, 2,307.26 and 1,052.40

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Solution

The fourth proportional to 1,539.20, 2,307.26 and 1,052.40 is: 1,577.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.20 : 2,307.26 = 1,052.40 : x
  2. Step 2: Convert to fraction form
    1,539.20/2,307.26 = 1,052.40/x
  3. Step 3: Cross multiply
    1,539.20x = 2,307.26 × 1,052.40
  4. Step 4: Simplify right side
    1,539.20x = 2,428,160.42
  5. Step 5: Solve for x
    x = 2,428,160.42/1,539.20
  6. Step 6: Final answer
    x = 1,577.55

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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.