Home / 5,078.20-7,617.30-4,883.80

Finding the Fourth Proportional to 5,078.20, 7,617.30 and 4,883.80

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Solution

The fourth proportional to 5,078.20, 7,617.30 and 4,883.80 is: 7,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.20 : 7,617.30 = 4,883.80 : x
  2. Step 2: Convert to fraction form
    5,078.20/7,617.30 = 4,883.80/x
  3. Step 3: Cross multiply
    5,078.20x = 7,617.30 × 4,883.80
  4. Step 4: Simplify right side
    5,078.20x = 37,201,369.74
  5. Step 5: Solve for x
    x = 37,201,369.74/5,078.20
  6. Step 6: Final answer
    x = 7,325.70

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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.