Home / 5,321.16-7,342.90-2,930.66

Finding the Fourth Proportional to 5,321.16, 7,342.90 and 2,930.66

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Solution

The fourth proportional to 5,321.16, 7,342.90 and 2,930.66 is: 4,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.16 : 7,342.90 = 2,930.66 : x
  2. Step 2: Convert to fraction form
    5,321.16/7,342.90 = 2,930.66/x
  3. Step 3: Cross multiply
    5,321.16x = 7,342.90 × 2,930.66
  4. Step 4: Simplify right side
    5,321.16x = 21,519,543.31
  5. Step 5: Solve for x
    x = 21,519,543.31/5,321.16
  6. Step 6: Final answer
    x = 4,044.15

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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.