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Finding the Fourth Proportional to 2,748.13, 4,122.06 and 899.00

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Solution

The fourth proportional to 2,748.13, 4,122.06 and 899.00 is: 1,348.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.13 : 4,122.06 = 899.00 : x
  2. Step 2: Convert to fraction form
    2,748.13/4,122.06 = 899.00/x
  3. Step 3: Cross multiply
    2,748.13x = 4,122.06 × 899.00
  4. Step 4: Simplify right side
    2,748.13x = 3,705,723.42
  5. Step 5: Solve for x
    x = 3,705,723.42/2,748.13
  6. Step 6: Final answer
    x = 1,348.45

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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.