Home / 7,079.19-9,765.12-4,427.90

Finding the Fourth Proportional to 7,079.19, 9,765.12 and 4,427.90

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Solution

The fourth proportional to 7,079.19, 9,765.12 and 4,427.90 is: 6,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.19 : 9,765.12 = 4,427.90 : x
  2. Step 2: Convert to fraction form
    7,079.19/9,765.12 = 4,427.90/x
  3. Step 3: Cross multiply
    7,079.19x = 9,765.12 × 4,427.90
  4. Step 4: Simplify right side
    7,079.19x = 43,238,974.85
  5. Step 5: Solve for x
    x = 43,238,974.85/7,079.19
  6. Step 6: Final answer
    x = 6,107.90

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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.