Home / 3,770.19-5,207.85-3,142.77

Finding the Fourth Proportional to 3,770.19, 5,207.85 and 3,142.77

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Solution

The fourth proportional to 3,770.19, 5,207.85 and 3,142.77 is: 4,341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.19 : 5,207.85 = 3,142.77 : x
  2. Step 2: Convert to fraction form
    3,770.19/5,207.85 = 3,142.77/x
  3. Step 3: Cross multiply
    3,770.19x = 5,207.85 × 3,142.77
  4. Step 4: Simplify right side
    3,770.19x = 16,367,074.74
  5. Step 5: Solve for x
    x = 16,367,074.74/3,770.19
  6. Step 6: Final answer
    x = 4,341.18

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Half scale
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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.