Home / 5,690.08-8,531.47-3,930.15

Finding the Fourth Proportional to 5,690.08, 8,531.47 and 3,930.15

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Solution

The fourth proportional to 5,690.08, 8,531.47 and 3,930.15 is: 5,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.08 : 8,531.47 = 3,930.15 : x
  2. Step 2: Convert to fraction form
    5,690.08/8,531.47 = 3,930.15/x
  3. Step 3: Cross multiply
    5,690.08x = 8,531.47 × 3,930.15
  4. Step 4: Simplify right side
    5,690.08x = 33,529,956.82
  5. Step 5: Solve for x
    x = 33,529,956.82/5,690.08
  6. Step 6: Final answer
    x = 5,892.70

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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.