Home / 5,612.15-7,743.98-3,221.99

Finding the Fourth Proportional to 5,612.15, 7,743.98 and 3,221.99

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Solution

The fourth proportional to 5,612.15, 7,743.98 and 3,221.99 is: 4,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.15 : 7,743.98 = 3,221.99 : x
  2. Step 2: Convert to fraction form
    5,612.15/7,743.98 = 3,221.99/x
  3. Step 3: Cross multiply
    5,612.15x = 7,743.98 × 3,221.99
  4. Step 4: Simplify right side
    5,612.15x = 24,951,024.50
  5. Step 5: Solve for x
    x = 24,951,024.50/5,612.15
  6. Step 6: Final answer
    x = 4,445.89

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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.