Home / 5,411.20-8,123.76-4,179.52

Finding the Fourth Proportional to 5,411.20, 8,123.76 and 4,179.52

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Solution

The fourth proportional to 5,411.20, 8,123.76 and 4,179.52 is: 6,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.20 : 8,123.76 = 4,179.52 : x
  2. Step 2: Convert to fraction form
    5,411.20/8,123.76 = 4,179.52/x
  3. Step 3: Cross multiply
    5,411.20x = 8,123.76 × 4,179.52
  4. Step 4: Simplify right side
    5,411.20x = 33,953,417.40
  5. Step 5: Solve for x
    x = 33,953,417.40/5,411.20
  6. Step 6: Final answer
    x = 6,274.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.