Home / 3,515.18-5,275.38-1,666.30

Finding the Fourth Proportional to 3,515.18, 5,275.38 and 1,666.30

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Solution

The fourth proportional to 3,515.18, 5,275.38 and 1,666.30 is: 2,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.18 : 5,275.38 = 1,666.30 : x
  2. Step 2: Convert to fraction form
    3,515.18/5,275.38 = 1,666.30/x
  3. Step 3: Cross multiply
    3,515.18x = 5,275.38 × 1,666.30
  4. Step 4: Simplify right side
    3,515.18x = 8,790,359.27
  5. Step 5: Solve for x
    x = 8,790,359.27/3,515.18
  6. Step 6: Final answer
    x = 2,500.68

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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.