Home / 5,624.56-7,761.96-3,140.56

Finding the Fourth Proportional to 5,624.56, 7,761.96 and 3,140.56

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Solution

The fourth proportional to 5,624.56, 7,761.96 and 3,140.56 is: 4,334.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624.56 : 7,761.96 = 3,140.56 : x
  2. Step 2: Convert to fraction form
    5,624.56/7,761.96 = 3,140.56/x
  3. Step 3: Cross multiply
    5,624.56x = 7,761.96 × 3,140.56
  4. Step 4: Simplify right side
    5,624.56x = 24,376,901.10
  5. Step 5: Solve for x
    x = 24,376,901.10/5,624.56
  6. Step 6: Final answer
    x = 4,334.01

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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.