Home / 2,545.70-3,512.68-1,551.31

Finding the Fourth Proportional to 2,545.70, 3,512.68 and 1,551.31

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Solution

The fourth proportional to 2,545.70, 3,512.68 and 1,551.31 is: 2,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.70 : 3,512.68 = 1,551.31 : x
  2. Step 2: Convert to fraction form
    2,545.70/3,512.68 = 1,551.31/x
  3. Step 3: Cross multiply
    2,545.70x = 3,512.68 × 1,551.31
  4. Step 4: Simplify right side
    2,545.70x = 5,449,242.95
  5. Step 5: Solve for x
    x = 5,449,242.95/2,545.70
  6. Step 6: Final answer
    x = 2,140.57

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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.