Home / 4,283.60-5,912.40-2,691.20

Finding the Fourth Proportional to 4,283.60, 5,912.40 and 2,691.20

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Solution

The fourth proportional to 4,283.60, 5,912.40 and 2,691.20 is: 3,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,283.60 : 5,912.40 = 2,691.20 : x
  2. Step 2: Convert to fraction form
    4,283.60/5,912.40 = 2,691.20/x
  3. Step 3: Cross multiply
    4,283.60x = 5,912.40 × 2,691.20
  4. Step 4: Simplify right side
    4,283.60x = 15,911,450.88
  5. Step 5: Solve for x
    x = 15,911,450.88/4,283.60
  6. Step 6: Final answer
    x = 3,714.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.