Home / 5,135.28-7,707.80-2,671.84

Finding the Fourth Proportional to 5,135.28, 7,707.80 and 2,671.84

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Solution

The fourth proportional to 5,135.28, 7,707.80 and 2,671.84 is: 4,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.28 : 7,707.80 = 2,671.84 : x
  2. Step 2: Convert to fraction form
    5,135.28/7,707.80 = 2,671.84/x
  3. Step 3: Cross multiply
    5,135.28x = 7,707.80 × 2,671.84
  4. Step 4: Simplify right side
    5,135.28x = 20,594,008.35
  5. Step 5: Solve for x
    x = 20,594,008.35/5,135.28
  6. Step 6: Final answer
    x = 4,010.30

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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.