Home / 5,631.61-7,770.95-3,113.38

Finding the Fourth Proportional to 5,631.61, 7,770.95 and 3,113.38

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Solution

The fourth proportional to 5,631.61, 7,770.95 and 3,113.38 is: 4,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.61 : 7,770.95 = 3,113.38 : x
  2. Step 2: Convert to fraction form
    5,631.61/7,770.95 = 3,113.38/x
  3. Step 3: Cross multiply
    5,631.61x = 7,770.95 × 3,113.38
  4. Step 4: Simplify right side
    5,631.61x = 24,193,937.78
  5. Step 5: Solve for x
    x = 24,193,937.78/5,631.61
  6. Step 6: Final answer
    x = 4,296.09

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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.