Home / 3,515.12-5,275.28-1,666.24

Finding the Fourth Proportional to 3,515.12, 5,275.28 and 1,666.24

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Solution

The fourth proportional to 3,515.12, 5,275.28 and 1,666.24 is: 2,500.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.12 : 5,275.28 = 1,666.24 : x
  2. Step 2: Convert to fraction form
    3,515.12/5,275.28 = 1,666.24/x
  3. Step 3: Cross multiply
    3,515.12x = 5,275.28 × 1,666.24
  4. Step 4: Simplify right side
    3,515.12x = 8,789,882.55
  5. Step 5: Solve for x
    x = 8,789,882.55/3,515.12
  6. Step 6: Final answer
    x = 2,500.59

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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.