Home / 2,545.27-3,510-1,985.54

Finding the Fourth Proportional to 2,545.27, 3,510 and 1,985.54

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Solution

The fourth proportional to 2,545.27, 3,510 and 1,985.54 is: 2,738.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.27 : 3,510 = 1,985.54 : x
  2. Step 2: Convert to fraction form
    2,545.27/3,510 = 1,985.54/x
  3. Step 3: Cross multiply
    2,545.27x = 3,510 × 1,985.54
  4. Step 4: Simplify right side
    2,545.27x = 6,969,227.85
  5. Step 5: Solve for x
    x = 6,969,227.85/2,545.27
  6. Step 6: Final answer
    x = 2,738.11

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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.