Home / 2,931.19-4,398.51-1,083.61

Finding the Fourth Proportional to 2,931.19, 4,398.51 and 1,083.61

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Solution

The fourth proportional to 2,931.19, 4,398.51 and 1,083.61 is: 1,626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.19 : 4,398.51 = 1,083.61 : x
  2. Step 2: Convert to fraction form
    2,931.19/4,398.51 = 1,083.61/x
  3. Step 3: Cross multiply
    2,931.19x = 4,398.51 × 1,083.61
  4. Step 4: Simplify right side
    2,931.19x = 4,766,269.42
  5. Step 5: Solve for x
    x = 4,766,269.42/2,931.19
  6. Step 6: Final answer
    x = 1,626.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.