Home / 2,630.13-3,940.07-1,587.08

Finding the Fourth Proportional to 2,630.13, 3,940.07 and 1,587.08

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Solution

The fourth proportional to 2,630.13, 3,940.07 and 1,587.08 is: 2,377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.13 : 3,940.07 = 1,587.08 : x
  2. Step 2: Convert to fraction form
    2,630.13/3,940.07 = 1,587.08/x
  3. Step 3: Cross multiply
    2,630.13x = 3,940.07 × 1,587.08
  4. Step 4: Simplify right side
    2,630.13x = 6,253,178.66
  5. Step 5: Solve for x
    x = 6,253,178.66/2,630.13
  6. Step 6: Final answer
    x = 2,377.52

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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.