Home / 2,891.13-4,329.73-1,654.78

Finding the Fourth Proportional to 2,891.13, 4,329.73 and 1,654.78

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Solution

The fourth proportional to 2,891.13, 4,329.73 and 1,654.78 is: 2,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.13 : 4,329.73 = 1,654.78 : x
  2. Step 2: Convert to fraction form
    2,891.13/4,329.73 = 1,654.78/x
  3. Step 3: Cross multiply
    2,891.13x = 4,329.73 × 1,654.78
  4. Step 4: Simplify right side
    2,891.13x = 7,164,750.61
  5. Step 5: Solve for x
    x = 7,164,750.61/2,891.13
  6. Step 6: Final answer
    x = 2,478.18

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1.5x scale

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.