Home / 3,359.28-5,038.92-1,278.79

Finding the Fourth Proportional to 3,359.28, 5,038.92 and 1,278.79

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Solution

The fourth proportional to 3,359.28, 5,038.92 and 1,278.79 is: 1,918.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.28 : 5,038.92 = 1,278.79 : x
  2. Step 2: Convert to fraction form
    3,359.28/5,038.92 = 1,278.79/x
  3. Step 3: Cross multiply
    3,359.28x = 5,038.92 × 1,278.79
  4. Step 4: Simplify right side
    3,359.28x = 6,443,720.51
  5. Step 5: Solve for x
    x = 6,443,720.51/3,359.28
  6. Step 6: Final answer
    x = 1,918.19

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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.