Home / 3,098.76-4,648.68-1,639.14

Finding the Fourth Proportional to 3,098.76, 4,648.68 and 1,639.14

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Solution

The fourth proportional to 3,098.76, 4,648.68 and 1,639.14 is: 2,459.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.76 : 4,648.68 = 1,639.14 : x
  2. Step 2: Convert to fraction form
    3,098.76/4,648.68 = 1,639.14/x
  3. Step 3: Cross multiply
    3,098.76x = 4,648.68 × 1,639.14
  4. Step 4: Simplify right side
    3,098.76x = 7,619,837.34
  5. Step 5: Solve for x
    x = 7,619,837.34/3,098.76
  6. Step 6: Final answer
    x = 2,459.00

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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.