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Finding the Fourth Proportional to 2,088.28, 3,132.12 and 549.28

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Solution

The fourth proportional to 2,088.28, 3,132.12 and 549.28 is: 823.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.28 : 3,132.12 = 549.28 : x
  2. Step 2: Convert to fraction form
    2,088.28/3,132.12 = 549.28/x
  3. Step 3: Cross multiply
    2,088.28x = 3,132.12 × 549.28
  4. Step 4: Simplify right side
    2,088.28x = 1,720,410.87
  5. Step 5: Solve for x
    x = 1,720,410.87/2,088.28
  6. Step 6: Final answer
    x = 823.84

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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.