Home / 3,854.00-5,318.51-2,085.61

Finding the Fourth Proportional to 3,854.00, 5,318.51 and 2,085.61

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Solution

The fourth proportional to 3,854.00, 5,318.51 and 2,085.61 is: 2,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.00 : 5,318.51 = 2,085.61 : x
  2. Step 2: Convert to fraction form
    3,854.00/5,318.51 = 2,085.61/x
  3. Step 3: Cross multiply
    3,854.00x = 5,318.51 × 2,085.61
  4. Step 4: Simplify right side
    3,854.00x = 11,092,312.74
  5. Step 5: Solve for x
    x = 11,092,312.74/3,854.00
  6. Step 6: Final answer
    x = 2,878.13

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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.