Home / 2,630.18-3,940.04-1,587.04

Finding the Fourth Proportional to 2,630.18, 3,940.04 and 1,587.04

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Solution

The fourth proportional to 2,630.18, 3,940.04 and 1,587.04 is: 2,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.18 : 3,940.04 = 1,587.04 : x
  2. Step 2: Convert to fraction form
    2,630.18/3,940.04 = 1,587.04/x
  3. Step 3: Cross multiply
    2,630.18x = 3,940.04 × 1,587.04
  4. Step 4: Simplify right side
    2,630.18x = 6,252,995.20
  5. Step 5: Solve for x
    x = 6,252,995.20/2,630.18
  6. Step 6: Final answer
    x = 2,377.40

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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.