Home / 2,851.14-4,277.28-1,119.78

Finding the Fourth Proportional to 2,851.14, 4,277.28 and 1,119.78

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Solution

The fourth proportional to 2,851.14, 4,277.28 and 1,119.78 is: 1,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.14 : 4,277.28 = 1,119.78 : x
  2. Step 2: Convert to fraction form
    2,851.14/4,277.28 = 1,119.78/x
  3. Step 3: Cross multiply
    2,851.14x = 4,277.28 × 1,119.78
  4. Step 4: Simplify right side
    2,851.14x = 4,789,612.60
  5. Step 5: Solve for x
    x = 4,789,612.60/2,851.14
  6. Step 6: Final answer
    x = 1,679.89

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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.