Home / 1,371.60-2,055.87-1,098.18

Finding the Fourth Proportional to 1,371.60, 2,055.87 and 1,098.18

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Solution

The fourth proportional to 1,371.60, 2,055.87 and 1,098.18 is: 1,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.60 : 2,055.87 = 1,098.18 : x
  2. Step 2: Convert to fraction form
    1,371.60/2,055.87 = 1,098.18/x
  3. Step 3: Cross multiply
    1,371.60x = 2,055.87 × 1,098.18
  4. Step 4: Simplify right side
    1,371.60x = 2,257,715.32
  5. Step 5: Solve for x
    x = 2,257,715.32/1,371.60
  6. Step 6: Final answer
    x = 1,646.04

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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.