Home / 3,393.44-4,680.40-2,275.64

Finding the Fourth Proportional to 3,393.44, 4,680.40 and 2,275.64

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Solution

The fourth proportional to 3,393.44, 4,680.40 and 2,275.64 is: 3,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.44 : 4,680.40 = 2,275.64 : x
  2. Step 2: Convert to fraction form
    3,393.44/4,680.40 = 2,275.64/x
  3. Step 3: Cross multiply
    3,393.44x = 4,680.40 × 2,275.64
  4. Step 4: Simplify right side
    3,393.44x = 10,650,905.46
  5. Step 5: Solve for x
    x = 10,650,905.46/3,393.44
  6. Step 6: Final answer
    x = 3,138.68

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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.