Home / 6,177.76-8,520.88-3,937.28

Finding the Fourth Proportional to 6,177.76, 8,520.88 and 3,937.28

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Solution

The fourth proportional to 6,177.76, 8,520.88 and 3,937.28 is: 5,430.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,177.76 : 8,520.88 = 3,937.28 : x
  2. Step 2: Convert to fraction form
    6,177.76/8,520.88 = 3,937.28/x
  3. Step 3: Cross multiply
    6,177.76x = 8,520.88 × 3,937.28
  4. Step 4: Simplify right side
    6,177.76x = 33,549,090.41
  5. Step 5: Solve for x
    x = 33,549,090.41/6,177.76
  6. Step 6: Final answer
    x = 5,430.62

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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.