Home / 5,325.20-7,987.82-2,726.72

Finding the Fourth Proportional to 5,325.20, 7,987.82 and 2,726.72

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Solution

The fourth proportional to 5,325.20, 7,987.82 and 2,726.72 is: 4,090.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.20 : 7,987.82 = 2,726.72 : x
  2. Step 2: Convert to fraction form
    5,325.20/7,987.82 = 2,726.72/x
  3. Step 3: Cross multiply
    5,325.20x = 7,987.82 × 2,726.72
  4. Step 4: Simplify right side
    5,325.20x = 21,780,548.55
  5. Step 5: Solve for x
    x = 21,780,548.55/5,325.20
  6. Step 6: Final answer
    x = 4,090.09

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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.