Home / 2,981.28-4,114.14-1,654.95

Finding the Fourth Proportional to 2,981.28, 4,114.14 and 1,654.95

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Solution

The fourth proportional to 2,981.28, 4,114.14 and 1,654.95 is: 2,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.28 : 4,114.14 = 1,654.95 : x
  2. Step 2: Convert to fraction form
    2,981.28/4,114.14 = 1,654.95/x
  3. Step 3: Cross multiply
    2,981.28x = 4,114.14 × 1,654.95
  4. Step 4: Simplify right side
    2,981.28x = 6,808,695.99
  5. Step 5: Solve for x
    x = 6,808,695.99/2,981.28
  6. Step 6: Final answer
    x = 2,283.82

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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.