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Finding the Fourth Proportional to 5,890.79, 8,129.13 and 3,501.83

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Solution

The fourth proportional to 5,890.79, 8,129.13 and 3,501.83 is: 4,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.79 : 8,129.13 = 3,501.83 : x
  2. Step 2: Convert to fraction form
    5,890.79/8,129.13 = 3,501.83/x
  3. Step 3: Cross multiply
    5,890.79x = 8,129.13 × 3,501.83
  4. Step 4: Simplify right side
    5,890.79x = 28,466,838.50
  5. Step 5: Solve for x
    x = 28,466,838.50/5,890.79
  6. Step 6: Final answer
    x = 4,832.43

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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.