Home / 5,631.50-7,771.29-3,113.42

Finding the Fourth Proportional to 5,631.50, 7,771.29 and 3,113.42

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Solution

The fourth proportional to 5,631.50, 7,771.29 and 3,113.42 is: 4,296.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.50 : 7,771.29 = 3,113.42 : x
  2. Step 2: Convert to fraction form
    5,631.50/7,771.29 = 3,113.42/x
  3. Step 3: Cross multiply
    5,631.50x = 7,771.29 × 3,113.42
  4. Step 4: Simplify right side
    5,631.50x = 24,195,289.71
  5. Step 5: Solve for x
    x = 24,195,289.71/5,631.50
  6. Step 6: Final answer
    x = 4,296.42

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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.