Home / 5,631.04-7,770.82-3,147.04

Finding the Fourth Proportional to 5,631.04, 7,770.82 and 3,147.04

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Solution

The fourth proportional to 5,631.04, 7,770.82 and 3,147.04 is: 4,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.04 : 7,770.82 = 3,147.04 : x
  2. Step 2: Convert to fraction form
    5,631.04/7,770.82 = 3,147.04/x
  3. Step 3: Cross multiply
    5,631.04x = 7,770.82 × 3,147.04
  4. Step 4: Simplify right side
    5,631.04x = 24,455,081.37
  5. Step 5: Solve for x
    x = 24,455,081.37/5,631.04
  6. Step 6: Final answer
    x = 4,342.91

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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.