Home / 5,615.28-7,749-3,097.48

Finding the Fourth Proportional to 5,615.28, 7,749 and 3,097.48

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Solution

The fourth proportional to 5,615.28, 7,749 and 3,097.48 is: 4,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.28 : 7,749 = 3,097.48 : x
  2. Step 2: Convert to fraction form
    5,615.28/7,749 = 3,097.48/x
  3. Step 3: Cross multiply
    5,615.28x = 7,749 × 3,097.48
  4. Step 4: Simplify right side
    5,615.28x = 24,002,372.52
  5. Step 5: Solve for x
    x = 24,002,372.52/5,615.28
  6. Step 6: Final answer
    x = 4,274.47

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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.