Home / 3,474.40-5,211.92-1,283.12

Finding the Fourth Proportional to 3,474.40, 5,211.92 and 1,283.12

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Solution

The fourth proportional to 3,474.40, 5,211.92 and 1,283.12 is: 1,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.40 : 5,211.92 = 1,283.12 : x
  2. Step 2: Convert to fraction form
    3,474.40/5,211.92 = 1,283.12/x
  3. Step 3: Cross multiply
    3,474.40x = 5,211.92 × 1,283.12
  4. Step 4: Simplify right side
    3,474.40x = 6,687,518.79
  5. Step 5: Solve for x
    x = 6,687,518.79/3,474.40
  6. Step 6: Final answer
    x = 1,924.80

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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.