Home / 5,420.25-8,130.24-2,498.55

Finding the Fourth Proportional to 5,420.25, 8,130.24 and 2,498.55

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Solution

The fourth proportional to 5,420.25, 8,130.24 and 2,498.55 is: 3,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.25 : 8,130.24 = 2,498.55 : x
  2. Step 2: Convert to fraction form
    5,420.25/8,130.24 = 2,498.55/x
  3. Step 3: Cross multiply
    5,420.25x = 8,130.24 × 2,498.55
  4. Step 4: Simplify right side
    5,420.25x = 20,313,836.94
  5. Step 5: Solve for x
    x = 20,313,836.94/5,420.25
  6. Step 6: Final answer
    x = 3,747.77

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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.