Home / 7,631.17-11,452.61-3,415.72

Finding the Fourth Proportional to 7,631.17, 11,452.61 and 3,415.72

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Solution

The fourth proportional to 7,631.17, 11,452.61 and 3,415.72 is: 5,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.17 : 11,452.61 = 3,415.72 : x
  2. Step 2: Convert to fraction form
    7,631.17/11,452.61 = 3,415.72/x
  3. Step 3: Cross multiply
    7,631.17x = 11,452.61 × 3,415.72
  4. Step 4: Simplify right side
    7,631.17x = 39,118,909.03
  5. Step 5: Solve for x
    x = 39,118,909.03/7,631.17
  6. Step 6: Final answer
    x = 5,126.20

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1.5x scale

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.