Home / 5,397.89-7,449.63-3,159.63

Finding the Fourth Proportional to 5,397.89, 7,449.63 and 3,159.63

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Solution

The fourth proportional to 5,397.89, 7,449.63 and 3,159.63 is: 4,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.89 : 7,449.63 = 3,159.63 : x
  2. Step 2: Convert to fraction form
    5,397.89/7,449.63 = 3,159.63/x
  3. Step 3: Cross multiply
    5,397.89x = 7,449.63 × 3,159.63
  4. Step 4: Simplify right side
    5,397.89x = 23,538,074.44
  5. Step 5: Solve for x
    x = 23,538,074.44/5,397.89
  6. Step 6: Final answer
    x = 4,360.61

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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.