Home / 5,345.90-7,377.30-2,988.02

Finding the Fourth Proportional to 5,345.90, 7,377.30 and 2,988.02

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Solution

The fourth proportional to 5,345.90, 7,377.30 and 2,988.02 is: 4,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.90 : 7,377.30 = 2,988.02 : x
  2. Step 2: Convert to fraction form
    5,345.90/7,377.30 = 2,988.02/x
  3. Step 3: Cross multiply
    5,345.90x = 7,377.30 × 2,988.02
  4. Step 4: Simplify right side
    5,345.90x = 22,043,519.95
  5. Step 5: Solve for x
    x = 22,043,519.95/5,345.90
  6. Step 6: Final answer
    x = 4,123.44

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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.