Home / 1,827.68-2,523.12-1,238.72

Finding the Fourth Proportional to 1,827.68, 2,523.12 and 1,238.72

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Solution

The fourth proportional to 1,827.68, 2,523.12 and 1,238.72 is: 1,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.68 : 2,523.12 = 1,238.72 : x
  2. Step 2: Convert to fraction form
    1,827.68/2,523.12 = 1,238.72/x
  3. Step 3: Cross multiply
    1,827.68x = 2,523.12 × 1,238.72
  4. Step 4: Simplify right side
    1,827.68x = 3,125,439.21
  5. Step 5: Solve for x
    x = 3,125,439.21/1,827.68
  6. Step 6: Final answer
    x = 1,710.06

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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.