Home / 2,743.32-4,112.93-1,281.45

Finding the Fourth Proportional to 2,743.32, 4,112.93 and 1,281.45

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Solution

The fourth proportional to 2,743.32, 4,112.93 and 1,281.45 is: 1,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.32 : 4,112.93 = 1,281.45 : x
  2. Step 2: Convert to fraction form
    2,743.32/4,112.93 = 1,281.45/x
  3. Step 3: Cross multiply
    2,743.32x = 4,112.93 × 1,281.45
  4. Step 4: Simplify right side
    2,743.32x = 5,270,490.86
  5. Step 5: Solve for x
    x = 5,270,490.86/2,743.32
  6. Step 6: Final answer
    x = 1,921.21

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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.