Home / 3,878.24-5,353.18-2,480.98

Finding the Fourth Proportional to 3,878.24, 5,353.18 and 2,480.98

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Solution

The fourth proportional to 3,878.24, 5,353.18 and 2,480.98 is: 3,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.24 : 5,353.18 = 2,480.98 : x
  2. Step 2: Convert to fraction form
    3,878.24/5,353.18 = 2,480.98/x
  3. Step 3: Cross multiply
    3,878.24x = 5,353.18 × 2,480.98
  4. Step 4: Simplify right side
    3,878.24x = 13,281,132.52
  5. Step 5: Solve for x
    x = 13,281,132.52/3,878.24
  6. Step 6: Final answer
    x = 3,424.53

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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.