Home / 2,957.28-4,436.40-1,418.32

Finding the Fourth Proportional to 2,957.28, 4,436.40 and 1,418.32

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Solution

The fourth proportional to 2,957.28, 4,436.40 and 1,418.32 is: 2,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.28 : 4,436.40 = 1,418.32 : x
  2. Step 2: Convert to fraction form
    2,957.28/4,436.40 = 1,418.32/x
  3. Step 3: Cross multiply
    2,957.28x = 4,436.40 × 1,418.32
  4. Step 4: Simplify right side
    2,957.28x = 6,292,234.85
  5. Step 5: Solve for x
    x = 6,292,234.85/2,957.28
  6. Step 6: Final answer
    x = 2,127.71

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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.