Home / 1,371.18-2,056.05-446.52

Finding the Fourth Proportional to 1,371.18, 2,056.05 and 446.52

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Solution

The fourth proportional to 1,371.18, 2,056.05 and 446.52 is: 669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.18 : 2,056.05 = 446.52 : x
  2. Step 2: Convert to fraction form
    1,371.18/2,056.05 = 446.52/x
  3. Step 3: Cross multiply
    1,371.18x = 2,056.05 × 446.52
  4. Step 4: Simplify right side
    1,371.18x = 918,067.45
  5. Step 5: Solve for x
    x = 918,067.45/1,371.18
  6. Step 6: Final answer
    x = 669.55

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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.