Home / 2,591.26-3,575.13-1,528.78

Finding the Fourth Proportional to 2,591.26, 3,575.13 and 1,528.78

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Solution

The fourth proportional to 2,591.26, 3,575.13 and 1,528.78 is: 2,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.26 : 3,575.13 = 1,528.78 : x
  2. Step 2: Convert to fraction form
    2,591.26/3,575.13 = 1,528.78/x
  3. Step 3: Cross multiply
    2,591.26x = 3,575.13 × 1,528.78
  4. Step 4: Simplify right side
    2,591.26x = 5,465,587.24
  5. Step 5: Solve for x
    x = 5,465,587.24/2,591.26
  6. Step 6: Final answer
    x = 2,109.24

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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.