Home / 5,626.79-7,764.30-3,108.75

Finding the Fourth Proportional to 5,626.79, 7,764.30 and 3,108.75

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Solution

The fourth proportional to 5,626.79, 7,764.30 and 3,108.75 is: 4,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.79 : 7,764.30 = 3,108.75 : x
  2. Step 2: Convert to fraction form
    5,626.79/7,764.30 = 3,108.75/x
  3. Step 3: Cross multiply
    5,626.79x = 7,764.30 × 3,108.75
  4. Step 4: Simplify right side
    5,626.79x = 24,137,213.26
  5. Step 5: Solve for x
    x = 24,137,213.26/5,626.79
  6. Step 6: Final answer
    x = 4,289.70

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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.