Home / 5,253.20-7,890.56-5,078.24

Finding the Fourth Proportional to 5,253.20, 7,890.56 and 5,078.24

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Solution

The fourth proportional to 5,253.20, 7,890.56 and 5,078.24 is: 7,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.20 : 7,890.56 = 5,078.24 : x
  2. Step 2: Convert to fraction form
    5,253.20/7,890.56 = 5,078.24/x
  3. Step 3: Cross multiply
    5,253.20x = 7,890.56 × 5,078.24
  4. Step 4: Simplify right side
    5,253.20x = 40,070,157.41
  5. Step 5: Solve for x
    x = 40,070,157.41/5,253.20
  6. Step 6: Final answer
    x = 7,627.76

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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.