Home / 5,326.89-7,990.33-5,319.19

Finding the Fourth Proportional to 5,326.89, 7,990.33 and 5,319.19

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Solution

The fourth proportional to 5,326.89, 7,990.33 and 5,319.19 is: 7,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.89 : 7,990.33 = 5,319.19 : x
  2. Step 2: Convert to fraction form
    5,326.89/7,990.33 = 5,319.19/x
  3. Step 3: Cross multiply
    5,326.89x = 7,990.33 × 5,319.19
  4. Step 4: Simplify right side
    5,326.89x = 42,502,083.43
  5. Step 5: Solve for x
    x = 42,502,083.43/5,326.89
  6. Step 6: Final answer
    x = 7,978.78

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1.5x scale

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.