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Finding the Fourth Proportional to 2,990.52, 4,480.02 and 1,452.60

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Solution

The fourth proportional to 2,990.52, 4,480.02 and 1,452.60 is: 2,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.52 : 4,480.02 = 1,452.60 : x
  2. Step 2: Convert to fraction form
    2,990.52/4,480.02 = 1,452.60/x
  3. Step 3: Cross multiply
    2,990.52x = 4,480.02 × 1,452.60
  4. Step 4: Simplify right side
    2,990.52x = 6,507,677.05
  5. Step 5: Solve for x
    x = 6,507,677.05/2,990.52
  6. Step 6: Final answer
    x = 2,176.10

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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.