Home / 3,851.28-5,776.32-1,254.20

Finding the Fourth Proportional to 3,851.28, 5,776.32 and 1,254.20

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Solution

The fourth proportional to 3,851.28, 5,776.32 and 1,254.20 is: 1,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.28 : 5,776.32 = 1,254.20 : x
  2. Step 2: Convert to fraction form
    3,851.28/5,776.32 = 1,254.20/x
  3. Step 3: Cross multiply
    3,851.28x = 5,776.32 × 1,254.20
  4. Step 4: Simplify right side
    3,851.28x = 7,244,660.54
  5. Step 5: Solve for x
    x = 7,244,660.54/3,851.28
  6. Step 6: Final answer
    x = 1,881.10

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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.