Home / 2,076.90-3,115.28-844.28

Finding the Fourth Proportional to 2,076.90, 3,115.28 and 844.28

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Solution

The fourth proportional to 2,076.90, 3,115.28 and 844.28 is: 1,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.90 : 3,115.28 = 844.28 : x
  2. Step 2: Convert to fraction form
    2,076.90/3,115.28 = 844.28/x
  3. Step 3: Cross multiply
    2,076.90x = 3,115.28 × 844.28
  4. Step 4: Simplify right side
    2,076.90x = 2,630,148.80
  5. Step 5: Solve for x
    x = 2,630,148.80/2,076.90
  6. Step 6: Final answer
    x = 1,266.38

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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.