Home / 3,657.20-5,045.12-2,609.88

Finding the Fourth Proportional to 3,657.20, 5,045.12 and 2,609.88

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Solution

The fourth proportional to 3,657.20, 5,045.12 and 2,609.88 is: 3,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.20 : 5,045.12 = 2,609.88 : x
  2. Step 2: Convert to fraction form
    3,657.20/5,045.12 = 2,609.88/x
  3. Step 3: Cross multiply
    3,657.20x = 5,045.12 × 2,609.88
  4. Step 4: Simplify right side
    3,657.20x = 13,167,157.79
  5. Step 5: Solve for x
    x = 13,167,157.79/3,657.20
  6. Step 6: Final answer
    x = 3,600.34

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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.