Home / 2,959.57-4,439.36-1,228.20

Finding the Fourth Proportional to 2,959.57, 4,439.36 and 1,228.20

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Solution

The fourth proportional to 2,959.57, 4,439.36 and 1,228.20 is: 1,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.57 : 4,439.36 = 1,228.20 : x
  2. Step 2: Convert to fraction form
    2,959.57/4,439.36 = 1,228.20/x
  3. Step 3: Cross multiply
    2,959.57x = 4,439.36 × 1,228.20
  4. Step 4: Simplify right side
    2,959.57x = 5,452,421.95
  5. Step 5: Solve for x
    x = 5,452,421.95/2,959.57
  6. Step 6: Final answer
    x = 1,842.30

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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.