Home / 6,620.92-9,127.21-4,729.17

Finding the Fourth Proportional to 6,620.92, 9,127.21 and 4,729.17

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Solution

The fourth proportional to 6,620.92, 9,127.21 and 4,729.17 is: 6,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.92 : 9,127.21 = 4,729.17 : x
  2. Step 2: Convert to fraction form
    6,620.92/9,127.21 = 4,729.17/x
  3. Step 3: Cross multiply
    6,620.92x = 9,127.21 × 4,729.17
  4. Step 4: Simplify right side
    6,620.92x = 43,164,127.72
  5. Step 5: Solve for x
    x = 43,164,127.72/6,620.92
  6. Step 6: Final answer
    x = 6,519.35

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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.