Home / 5,679.28-8,513.43-1,782.76

Finding the Fourth Proportional to 5,679.28, 8,513.43 and 1,782.76

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Solution

The fourth proportional to 5,679.28, 8,513.43 and 1,782.76 is: 2,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.28 : 8,513.43 = 1,782.76 : x
  2. Step 2: Convert to fraction form
    5,679.28/8,513.43 = 1,782.76/x
  3. Step 3: Cross multiply
    5,679.28x = 8,513.43 × 1,782.76
  4. Step 4: Simplify right side
    5,679.28x = 15,177,402.47
  5. Step 5: Solve for x
    x = 15,177,402.47/5,679.28
  6. Step 6: Final answer
    x = 2,672.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.