Home / 5,421.47-8,123.69-3,229.00

Finding the Fourth Proportional to 5,421.47, 8,123.69 and 3,229.00

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Solution

The fourth proportional to 5,421.47, 8,123.69 and 3,229.00 is: 4,838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.47 : 8,123.69 = 3,229.00 : x
  2. Step 2: Convert to fraction form
    5,421.47/8,123.69 = 3,229.00/x
  3. Step 3: Cross multiply
    5,421.47x = 8,123.69 × 3,229.00
  4. Step 4: Simplify right side
    5,421.47x = 26,231,382.77
  5. Step 5: Solve for x
    x = 26,231,382.77/5,421.47
  6. Step 6: Final answer
    x = 4,838.43

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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.