Home / 6,631.92-9,142.32-4,740.12

Finding the Fourth Proportional to 6,631.92, 9,142.32 and 4,740.12

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Solution

The fourth proportional to 6,631.92, 9,142.32 and 4,740.12 is: 6,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.92 : 9,142.32 = 4,740.12 : x
  2. Step 2: Convert to fraction form
    6,631.92/9,142.32 = 4,740.12/x
  3. Step 3: Cross multiply
    6,631.92x = 9,142.32 × 4,740.12
  4. Step 4: Simplify right side
    6,631.92x = 43,335,693.88
  5. Step 5: Solve for x
    x = 43,335,693.88/6,631.92
  6. Step 6: Final answer
    x = 6,534.41

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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.