Home / 2,637.28-3,956.16-1,098.40

Finding the Fourth Proportional to 2,637.28, 3,956.16 and 1,098.40

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Solution

The fourth proportional to 2,637.28, 3,956.16 and 1,098.40 is: 1,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.28 : 3,956.16 = 1,098.40 : x
  2. Step 2: Convert to fraction form
    2,637.28/3,956.16 = 1,098.40/x
  3. Step 3: Cross multiply
    2,637.28x = 3,956.16 × 1,098.40
  4. Step 4: Simplify right side
    2,637.28x = 4,345,446.14
  5. Step 5: Solve for x
    x = 4,345,446.14/2,637.28
  6. Step 6: Final answer
    x = 1,647.70

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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.