Home / 4,052.16-6,078.28-1,278.78

Finding the Fourth Proportional to 4,052.16, 6,078.28 and 1,278.78

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Solution

The fourth proportional to 4,052.16, 6,078.28 and 1,278.78 is: 1,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,052.16 : 6,078.28 = 1,278.78 : x
  2. Step 2: Convert to fraction form
    4,052.16/6,078.28 = 1,278.78/x
  3. Step 3: Cross multiply
    4,052.16x = 6,078.28 × 1,278.78
  4. Step 4: Simplify right side
    4,052.16x = 7,772,782.90
  5. Step 5: Solve for x
    x = 7,772,782.90/4,052.16
  6. Step 6: Final answer
    x = 1,918.18

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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.