Home / 5,624.38-7,761.63-3,106.68

Finding the Fourth Proportional to 5,624.38, 7,761.63 and 3,106.68

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Solution

The fourth proportional to 5,624.38, 7,761.63 and 3,106.68 is: 4,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624.38 : 7,761.63 = 3,106.68 : x
  2. Step 2: Convert to fraction form
    5,624.38/7,761.63 = 3,106.68/x
  3. Step 3: Cross multiply
    5,624.38x = 7,761.63 × 3,106.68
  4. Step 4: Simplify right side
    5,624.38x = 24,112,900.69
  5. Step 5: Solve for x
    x = 24,112,900.69/5,624.38
  6. Step 6: Final answer
    x = 4,287.21

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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.