Home / 1,854.30-2,555.96-1,256.61

Finding the Fourth Proportional to 1,854.30, 2,555.96 and 1,256.61

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Solution

The fourth proportional to 1,854.30, 2,555.96 and 1,256.61 is: 1,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.30 : 2,555.96 = 1,256.61 : x
  2. Step 2: Convert to fraction form
    1,854.30/2,555.96 = 1,256.61/x
  3. Step 3: Cross multiply
    1,854.30x = 2,555.96 × 1,256.61
  4. Step 4: Simplify right side
    1,854.30x = 3,211,844.90
  5. Step 5: Solve for x
    x = 3,211,844.90/1,854.30
  6. Step 6: Final answer
    x = 1,732.11

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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.