Home / 5,631.15-7,770.84-3,113.28

Finding the Fourth Proportional to 5,631.15, 7,770.84 and 3,113.28

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Solution

The fourth proportional to 5,631.15, 7,770.84 and 3,113.28 is: 4,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.15 : 7,770.84 = 3,113.28 : x
  2. Step 2: Convert to fraction form
    5,631.15/7,770.84 = 3,113.28/x
  3. Step 3: Cross multiply
    5,631.15x = 7,770.84 × 3,113.28
  4. Step 4: Simplify right side
    5,631.15x = 24,192,800.76
  5. Step 5: Solve for x
    x = 24,192,800.76/5,631.15
  6. Step 6: Final answer
    x = 4,296.25

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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.