Home / 5,178.44-7,147.18-3,053.85

Finding the Fourth Proportional to 5,178.44, 7,147.18 and 3,053.85

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Solution

The fourth proportional to 5,178.44, 7,147.18 and 3,053.85 is: 4,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.44 : 7,147.18 = 3,053.85 : x
  2. Step 2: Convert to fraction form
    5,178.44/7,147.18 = 3,053.85/x
  3. Step 3: Cross multiply
    5,178.44x = 7,147.18 × 3,053.85
  4. Step 4: Simplify right side
    5,178.44x = 21,826,381.21
  5. Step 5: Solve for x
    x = 21,826,381.21/5,178.44
  6. Step 6: Final answer
    x = 4,214.85

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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.