Home / 4,076.80-6,115.57-1,302.78

Finding the Fourth Proportional to 4,076.80, 6,115.57 and 1,302.78

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Solution

The fourth proportional to 4,076.80, 6,115.57 and 1,302.78 is: 1,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,076.80 : 6,115.57 = 1,302.78 : x
  2. Step 2: Convert to fraction form
    4,076.80/6,115.57 = 1,302.78/x
  3. Step 3: Cross multiply
    4,076.80x = 6,115.57 × 1,302.78
  4. Step 4: Simplify right side
    4,076.80x = 7,967,261.96
  5. Step 5: Solve for x
    x = 7,967,261.96/4,076.80
  6. Step 6: Final answer
    x = 1,954.29

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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.