Home / 2,726.18-3,760.88-1,781.72

Finding the Fourth Proportional to 2,726.18, 3,760.88 and 1,781.72

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Solution

The fourth proportional to 2,726.18, 3,760.88 and 1,781.72 is: 2,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.18 : 3,760.88 = 1,781.72 : x
  2. Step 2: Convert to fraction form
    2,726.18/3,760.88 = 1,781.72/x
  3. Step 3: Cross multiply
    2,726.18x = 3,760.88 × 1,781.72
  4. Step 4: Simplify right side
    2,726.18x = 6,700,807.40
  5. Step 5: Solve for x
    x = 6,700,807.40/2,726.18
  6. Step 6: Final answer
    x = 2,457.95

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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.