Home / 6,720.27-9,275.01-3,887.70

Finding the Fourth Proportional to 6,720.27, 9,275.01 and 3,887.70

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Solution

The fourth proportional to 6,720.27, 9,275.01 and 3,887.70 is: 5,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.27 : 9,275.01 = 3,887.70 : x
  2. Step 2: Convert to fraction form
    6,720.27/9,275.01 = 3,887.70/x
  3. Step 3: Cross multiply
    6,720.27x = 9,275.01 × 3,887.70
  4. Step 4: Simplify right side
    6,720.27x = 36,058,407.02
  5. Step 5: Solve for x
    x = 36,058,407.02/6,720.27
  6. Step 6: Final answer
    x = 5,365.62

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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.