Home / 2,540.09-3,505.46-1,545.20

Finding the Fourth Proportional to 2,540.09, 3,505.46 and 1,545.20

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Solution

The fourth proportional to 2,540.09, 3,505.46 and 1,545.20 is: 2,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.09 : 3,505.46 = 1,545.20 : x
  2. Step 2: Convert to fraction form
    2,540.09/3,505.46 = 1,545.20/x
  3. Step 3: Cross multiply
    2,540.09x = 3,505.46 × 1,545.20
  4. Step 4: Simplify right side
    2,540.09x = 5,416,636.79
  5. Step 5: Solve for x
    x = 5,416,636.79/2,540.09
  6. Step 6: Final answer
    x = 2,132.46

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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.