Home / 5,159.47-7,120.08-3,170.02

Finding the Fourth Proportional to 5,159.47, 7,120.08 and 3,170.02

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Solution

The fourth proportional to 5,159.47, 7,120.08 and 3,170.02 is: 4,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.47 : 7,120.08 = 3,170.02 : x
  2. Step 2: Convert to fraction form
    5,159.47/7,120.08 = 3,170.02/x
  3. Step 3: Cross multiply
    5,159.47x = 7,120.08 × 3,170.02
  4. Step 4: Simplify right side
    5,159.47x = 22,570,796.00
  5. Step 5: Solve for x
    x = 22,570,796.00/5,159.47
  6. Step 6: Final answer
    x = 4,374.63

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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.