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Finding the Fourth Proportional to 2,903.12, 4,351.17 and 1,339.88

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Solution

The fourth proportional to 2,903.12, 4,351.17 and 1,339.88 is: 2,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.12 : 4,351.17 = 1,339.88 : x
  2. Step 2: Convert to fraction form
    2,903.12/4,351.17 = 1,339.88/x
  3. Step 3: Cross multiply
    2,903.12x = 4,351.17 × 1,339.88
  4. Step 4: Simplify right side
    2,903.12x = 5,830,021.39
  5. Step 5: Solve for x
    x = 5,830,021.39/2,903.12
  6. Step 6: Final answer
    x = 2,008.19

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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.