Home / 4,148.90-6,223.28-1,959.20

Finding the Fourth Proportional to 4,148.90, 6,223.28 and 1,959.20

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Solution

The fourth proportional to 4,148.90, 6,223.28 and 1,959.20 is: 2,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.90 : 6,223.28 = 1,959.20 : x
  2. Step 2: Convert to fraction form
    4,148.90/6,223.28 = 1,959.20/x
  3. Step 3: Cross multiply
    4,148.90x = 6,223.28 × 1,959.20
  4. Step 4: Simplify right side
    4,148.90x = 12,192,609.26
  5. Step 5: Solve for x
    x = 12,192,609.26/4,148.90
  6. Step 6: Final answer
    x = 2,938.76

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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.