Home / 3,707.68-5,115.40-2,645.62

Finding the Fourth Proportional to 3,707.68, 5,115.40 and 2,645.62

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Solution

The fourth proportional to 3,707.68, 5,115.40 and 2,645.62 is: 3,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.68 : 5,115.40 = 2,645.62 : x
  2. Step 2: Convert to fraction form
    3,707.68/5,115.40 = 2,645.62/x
  3. Step 3: Cross multiply
    3,707.68x = 5,115.40 × 2,645.62
  4. Step 4: Simplify right side
    3,707.68x = 13,533,404.55
  5. Step 5: Solve for x
    x = 13,533,404.55/3,707.68
  6. Step 6: Final answer
    x = 3,650.10

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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.