Home / 4,123.50-5,690.40-2,354.76

Finding the Fourth Proportional to 4,123.50, 5,690.40 and 2,354.76

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Solution

The fourth proportional to 4,123.50, 5,690.40 and 2,354.76 is: 3,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.50 : 5,690.40 = 2,354.76 : x
  2. Step 2: Convert to fraction form
    4,123.50/5,690.40 = 2,354.76/x
  3. Step 3: Cross multiply
    4,123.50x = 5,690.40 × 2,354.76
  4. Step 4: Simplify right side
    4,123.50x = 13,399,526.30
  5. Step 5: Solve for x
    x = 13,399,526.30/4,123.50
  6. Step 6: Final answer
    x = 3,249.55

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Half scale
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Double scale
Find fourth proportional to 4,124.50, 5,691.78 and 2,355.76
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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.