Home / 2,737.30-3,772.20-1,990.08

Finding the Fourth Proportional to 2,737.30, 3,772.20 and 1,990.08

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Solution

The fourth proportional to 2,737.30, 3,772.20 and 1,990.08 is: 2,742.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,737.30 : 3,772.20 = 1,990.08 : x
  2. Step 2: Convert to fraction form
    2,737.30/3,772.20 = 1,990.08/x
  3. Step 3: Cross multiply
    2,737.30x = 3,772.20 × 1,990.08
  4. Step 4: Simplify right side
    2,737.30x = 7,506,979.78
  5. Step 5: Solve for x
    x = 7,506,979.78/2,737.30
  6. Step 6: Final answer
    x = 2,742.48

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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.