Home / 4,752.80-7,115.70-4,494.20

Finding the Fourth Proportional to 4,752.80, 7,115.70 and 4,494.20

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Solution

The fourth proportional to 4,752.80, 7,115.70 and 4,494.20 is: 6,728.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.80 : 7,115.70 = 4,494.20 : x
  2. Step 2: Convert to fraction form
    4,752.80/7,115.70 = 4,494.20/x
  3. Step 3: Cross multiply
    4,752.80x = 7,115.70 × 4,494.20
  4. Step 4: Simplify right side
    4,752.80x = 31,979,378.94
  5. Step 5: Solve for x
    x = 31,979,378.94/4,752.80
  6. Step 6: Final answer
    x = 6,728.53

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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.