Home / 2,982.32-4,116.99-1,864.90

Finding the Fourth Proportional to 2,982.32, 4,116.99 and 1,864.90

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Solution

The fourth proportional to 2,982.32, 4,116.99 and 1,864.90 is: 2,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.32 : 4,116.99 = 1,864.90 : x
  2. Step 2: Convert to fraction form
    2,982.32/4,116.99 = 1,864.90/x
  3. Step 3: Cross multiply
    2,982.32x = 4,116.99 × 1,864.90
  4. Step 4: Simplify right side
    2,982.32x = 7,677,758.73
  5. Step 5: Solve for x
    x = 7,677,758.73/2,982.32
  6. Step 6: Final answer
    x = 2,574.43

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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.