Home / 6,720.89-9,278.98-4,331.71

Finding the Fourth Proportional to 6,720.89, 9,278.98 and 4,331.71

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Solution

The fourth proportional to 6,720.89, 9,278.98 and 4,331.71 is: 5,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.89 : 9,278.98 = 4,331.71 : x
  2. Step 2: Convert to fraction form
    6,720.89/9,278.98 = 4,331.71/x
  3. Step 3: Cross multiply
    6,720.89x = 9,278.98 × 4,331.71
  4. Step 4: Simplify right side
    6,720.89x = 40,193,850.46
  5. Step 5: Solve for x
    x = 40,193,850.46/6,720.89
  6. Step 6: Final answer
    x = 5,980.44

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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.