Home / 2,423.87-3,342.89-1,981.00

Finding the Fourth Proportional to 2,423.87, 3,342.89 and 1,981.00

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Solution

The fourth proportional to 2,423.87, 3,342.89 and 1,981.00 is: 2,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.87 : 3,342.89 = 1,981.00 : x
  2. Step 2: Convert to fraction form
    2,423.87/3,342.89 = 1,981.00/x
  3. Step 3: Cross multiply
    2,423.87x = 3,342.89 × 1,981.00
  4. Step 4: Simplify right side
    2,423.87x = 6,622,261.69
  5. Step 5: Solve for x
    x = 6,622,261.69/2,423.87
  6. Step 6: Final answer
    x = 2,732.11

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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.