Home / 3,143.08-4,337.48-1,726.78

Finding the Fourth Proportional to 3,143.08, 4,337.48 and 1,726.78

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Solution

The fourth proportional to 3,143.08, 4,337.48 and 1,726.78 is: 2,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.08 : 4,337.48 = 1,726.78 : x
  2. Step 2: Convert to fraction form
    3,143.08/4,337.48 = 1,726.78/x
  3. Step 3: Cross multiply
    3,143.08x = 4,337.48 × 1,726.78
  4. Step 4: Simplify right side
    3,143.08x = 7,489,873.71
  5. Step 5: Solve for x
    x = 7,489,873.71/3,143.08
  6. Step 6: Final answer
    x = 2,382.97

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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.