Home / 7,022.38-9,679.33-4,978.95

Finding the Fourth Proportional to 7,022.38, 9,679.33 and 4,978.95

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Solution

The fourth proportional to 7,022.38, 9,679.33 and 4,978.95 is: 6,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.38 : 9,679.33 = 4,978.95 : x
  2. Step 2: Convert to fraction form
    7,022.38/9,679.33 = 4,978.95/x
  3. Step 3: Cross multiply
    7,022.38x = 9,679.33 × 4,978.95
  4. Step 4: Simplify right side
    7,022.38x = 48,192,924.48
  5. Step 5: Solve for x
    x = 48,192,924.48/7,022.38
  6. Step 6: Final answer
    x = 6,862.76

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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.