Home / 5,631.26-7,766.42-4,120.70

Finding the Fourth Proportional to 5,631.26, 7,766.42 and 4,120.70

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Solution

The fourth proportional to 5,631.26, 7,766.42 and 4,120.70 is: 5,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.26 : 7,766.42 = 4,120.70 : x
  2. Step 2: Convert to fraction form
    5,631.26/7,766.42 = 4,120.70/x
  3. Step 3: Cross multiply
    5,631.26x = 7,766.42 × 4,120.70
  4. Step 4: Simplify right side
    5,631.26x = 32,003,086.89
  5. Step 5: Solve for x
    x = 32,003,086.89/5,631.26
  6. Step 6: Final answer
    x = 5,683.11

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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.