Home / 3,160.60-4,743-1,108.60

Finding the Fourth Proportional to 3,160.60, 4,743 and 1,108.60

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Solution

The fourth proportional to 3,160.60, 4,743 and 1,108.60 is: 1,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.60 : 4,743 = 1,108.60 : x
  2. Step 2: Convert to fraction form
    3,160.60/4,743 = 1,108.60/x
  3. Step 3: Cross multiply
    3,160.60x = 4,743 × 1,108.60
  4. Step 4: Simplify right side
    3,160.60x = 5,258,089.80
  5. Step 5: Solve for x
    x = 5,258,089.80/3,160.60
  6. Step 6: Final answer
    x = 1,663.64

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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.