Home / 5,635.17-7,775.85-3,117.12

Finding the Fourth Proportional to 5,635.17, 7,775.85 and 3,117.12

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Solution

The fourth proportional to 5,635.17, 7,775.85 and 3,117.12 is: 4,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.17 : 7,775.85 = 3,117.12 : x
  2. Step 2: Convert to fraction form
    5,635.17/7,775.85 = 3,117.12/x
  3. Step 3: Cross multiply
    5,635.17x = 7,775.85 × 3,117.12
  4. Step 4: Simplify right side
    5,635.17x = 24,238,257.55
  5. Step 5: Solve for x
    x = 24,238,257.55/5,635.17
  6. Step 6: Final answer
    x = 4,301.25

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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.