Home / 1,371.12-2,056.68-1,354.80

Finding the Fourth Proportional to 1,371.12, 2,056.68 and 1,354.80

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Solution

The fourth proportional to 1,371.12, 2,056.68 and 1,354.80 is: 2,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.12 : 2,056.68 = 1,354.80 : x
  2. Step 2: Convert to fraction form
    1,371.12/2,056.68 = 1,354.80/x
  3. Step 3: Cross multiply
    1,371.12x = 2,056.68 × 1,354.80
  4. Step 4: Simplify right side
    1,371.12x = 2,786,390.06
  5. Step 5: Solve for x
    x = 2,786,390.06/1,371.12
  6. Step 6: Final answer
    x = 2,032.20

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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.