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Finding the Fourth Proportional to 3,298.42, 4,948.03 and 1,077.20

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Solution

The fourth proportional to 3,298.42, 4,948.03 and 1,077.20 is: 1,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.42 : 4,948.03 = 1,077.20 : x
  2. Step 2: Convert to fraction form
    3,298.42/4,948.03 = 1,077.20/x
  3. Step 3: Cross multiply
    3,298.42x = 4,948.03 × 1,077.20
  4. Step 4: Simplify right side
    3,298.42x = 5,329,993.18
  5. Step 5: Solve for x
    x = 5,329,993.18/3,298.42
  6. Step 6: Final answer
    x = 1,615.93

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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.