Home / 2,687.43-4,030.13-1,043.78

Finding the Fourth Proportional to 2,687.43, 4,030.13 and 1,043.78

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Solution

The fourth proportional to 2,687.43, 4,030.13 and 1,043.78 is: 1,565.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.43 : 4,030.13 = 1,043.78 : x
  2. Step 2: Convert to fraction form
    2,687.43/4,030.13 = 1,043.78/x
  3. Step 3: Cross multiply
    2,687.43x = 4,030.13 × 1,043.78
  4. Step 4: Simplify right side
    2,687.43x = 4,206,543.72
  5. Step 5: Solve for x
    x = 4,206,543.72/2,687.43
  6. Step 6: Final answer
    x = 1,565.27

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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.