Home / 2,572.36-3,549.86-1,393.43

Finding the Fourth Proportional to 2,572.36, 3,549.86 and 1,393.43

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Solution

The fourth proportional to 2,572.36, 3,549.86 and 1,393.43 is: 1,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.36 : 3,549.86 = 1,393.43 : x
  2. Step 2: Convert to fraction form
    2,572.36/3,549.86 = 1,393.43/x
  3. Step 3: Cross multiply
    2,572.36x = 3,549.86 × 1,393.43
  4. Step 4: Simplify right side
    2,572.36x = 4,946,481.42
  5. Step 5: Solve for x
    x = 4,946,481.42/2,572.36
  6. Step 6: Final answer
    x = 1,922.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.