Home / 5,624.30-7,761.76-3,106.70

Finding the Fourth Proportional to 5,624.30, 7,761.76 and 3,106.70

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Solution

The fourth proportional to 5,624.30, 7,761.76 and 3,106.70 is: 4,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624.30 : 7,761.76 = 3,106.70 : x
  2. Step 2: Convert to fraction form
    5,624.30/7,761.76 = 3,106.70/x
  3. Step 3: Cross multiply
    5,624.30x = 7,761.76 × 3,106.70
  4. Step 4: Simplify right side
    5,624.30x = 24,113,459.79
  5. Step 5: Solve for x
    x = 24,113,459.79/5,624.30
  6. Step 6: Final answer
    x = 4,287.37

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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.