Home / 5,112.74-7,671.27-2,192.42

Finding the Fourth Proportional to 5,112.74, 7,671.27 and 2,192.42

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Solution

The fourth proportional to 5,112.74, 7,671.27 and 2,192.42 is: 3,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.74 : 7,671.27 = 2,192.42 : x
  2. Step 2: Convert to fraction form
    5,112.74/7,671.27 = 2,192.42/x
  3. Step 3: Cross multiply
    5,112.74x = 7,671.27 × 2,192.42
  4. Step 4: Simplify right side
    5,112.74x = 16,818,607.42
  5. Step 5: Solve for x
    x = 16,818,607.42/5,112.74
  6. Step 6: Final answer
    x = 3,289.55

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1.5x scale

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.