Home / 2,177.43-3,005.15-1,337.87

Finding the Fourth Proportional to 2,177.43, 3,005.15 and 1,337.87

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Solution

The fourth proportional to 2,177.43, 3,005.15 and 1,337.87 is: 1,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.43 : 3,005.15 = 1,337.87 : x
  2. Step 2: Convert to fraction form
    2,177.43/3,005.15 = 1,337.87/x
  3. Step 3: Cross multiply
    2,177.43x = 3,005.15 × 1,337.87
  4. Step 4: Simplify right side
    2,177.43x = 4,020,478.32
  5. Step 5: Solve for x
    x = 4,020,478.32/2,177.43
  6. Step 6: Final answer
    x = 1,846.43

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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.