Home / 3,618.08-5,416.85-2,381.76

Finding the Fourth Proportional to 3,618.08, 5,416.85 and 2,381.76

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Solution

The fourth proportional to 3,618.08, 5,416.85 and 2,381.76 is: 3,565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.08 : 5,416.85 = 2,381.76 : x
  2. Step 2: Convert to fraction form
    3,618.08/5,416.85 = 2,381.76/x
  3. Step 3: Cross multiply
    3,618.08x = 5,416.85 × 2,381.76
  4. Step 4: Simplify right side
    3,618.08x = 12,901,636.66
  5. Step 5: Solve for x
    x = 12,901,636.66/3,618.08
  6. Step 6: Final answer
    x = 3,565.88

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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.