Home / 5,480.06-7,560.62-3,120.53

Finding the Fourth Proportional to 5,480.06, 7,560.62 and 3,120.53

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Solution

The fourth proportional to 5,480.06, 7,560.62 and 3,120.53 is: 4,305.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.06 : 7,560.62 = 3,120.53 : x
  2. Step 2: Convert to fraction form
    5,480.06/7,560.62 = 3,120.53/x
  3. Step 3: Cross multiply
    5,480.06x = 7,560.62 × 3,120.53
  4. Step 4: Simplify right side
    5,480.06x = 23,593,088.12
  5. Step 5: Solve for x
    x = 23,593,088.12/5,480.06
  6. Step 6: Final answer
    x = 4,305.26

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Half scale
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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.