Home / 5,628.24-7,766.60-3,143.76

Finding the Fourth Proportional to 5,628.24, 7,766.60 and 3,143.76

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Solution

The fourth proportional to 5,628.24, 7,766.60 and 3,143.76 is: 4,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.24 : 7,766.60 = 3,143.76 : x
  2. Step 2: Convert to fraction form
    5,628.24/7,766.60 = 3,143.76/x
  3. Step 3: Cross multiply
    5,628.24x = 7,766.60 × 3,143.76
  4. Step 4: Simplify right side
    5,628.24x = 24,416,326.42
  5. Step 5: Solve for x
    x = 24,416,326.42/5,628.24
  6. Step 6: Final answer
    x = 4,338.18

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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.