Home / 2,981.15-4,113.68-1,654.71

Finding the Fourth Proportional to 2,981.15, 4,113.68 and 1,654.71

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Solution

The fourth proportional to 2,981.15, 4,113.68 and 1,654.71 is: 2,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.15 : 4,113.68 = 1,654.71 : x
  2. Step 2: Convert to fraction form
    2,981.15/4,113.68 = 1,654.71/x
  3. Step 3: Cross multiply
    2,981.15x = 4,113.68 × 1,654.71
  4. Step 4: Simplify right side
    2,981.15x = 6,806,943.35
  5. Step 5: Solve for x
    x = 6,806,943.35/2,981.15
  6. Step 6: Final answer
    x = 2,283.33

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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.