Home / 5,377.71-7,420.98-2,987.83

Finding the Fourth Proportional to 5,377.71, 7,420.98 and 2,987.83

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Solution

The fourth proportional to 5,377.71, 7,420.98 and 2,987.83 is: 4,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.71 : 7,420.98 = 2,987.83 : x
  2. Step 2: Convert to fraction form
    5,377.71/7,420.98 = 2,987.83/x
  3. Step 3: Cross multiply
    5,377.71x = 7,420.98 × 2,987.83
  4. Step 4: Simplify right side
    5,377.71x = 22,172,630.35
  5. Step 5: Solve for x
    x = 22,172,630.35/5,377.71
  6. Step 6: Final answer
    x = 4,123.06

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1.5x scale

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.