Home / 5,104.72-7,045.16-3,114.85

Finding the Fourth Proportional to 5,104.72, 7,045.16 and 3,114.85

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Solution

The fourth proportional to 5,104.72, 7,045.16 and 3,114.85 is: 4,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.72 : 7,045.16 = 3,114.85 : x
  2. Step 2: Convert to fraction form
    5,104.72/7,045.16 = 3,114.85/x
  3. Step 3: Cross multiply
    5,104.72x = 7,045.16 × 3,114.85
  4. Step 4: Simplify right side
    5,104.72x = 21,944,616.63
  5. Step 5: Solve for x
    x = 21,944,616.63/5,104.72
  6. Step 6: Final answer
    x = 4,298.89

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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.