Home / 5,161.62-7,123.08-3,065.88

Finding the Fourth Proportional to 5,161.62, 7,123.08 and 3,065.88

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Solution

The fourth proportional to 5,161.62, 7,123.08 and 3,065.88 is: 4,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.62 : 7,123.08 = 3,065.88 : x
  2. Step 2: Convert to fraction form
    5,161.62/7,123.08 = 3,065.88/x
  3. Step 3: Cross multiply
    5,161.62x = 7,123.08 × 3,065.88
  4. Step 4: Simplify right side
    5,161.62x = 21,838,508.51
  5. Step 5: Solve for x
    x = 21,838,508.51/5,161.62
  6. Step 6: Final answer
    x = 4,230.94

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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.