Home / 5,580.20-8,402.94-4,129.56

Finding the Fourth Proportional to 5,580.20, 8,402.94 and 4,129.56

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Solution

The fourth proportional to 5,580.20, 8,402.94 and 4,129.56 is: 6,218.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.20 : 8,402.94 = 4,129.56 : x
  2. Step 2: Convert to fraction form
    5,580.20/8,402.94 = 4,129.56/x
  3. Step 3: Cross multiply
    5,580.20x = 8,402.94 × 4,129.56
  4. Step 4: Simplify right side
    5,580.20x = 34,700,444.91
  5. Step 5: Solve for x
    x = 34,700,444.91/5,580.20
  6. Step 6: Final answer
    x = 6,218.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.