Home / 3,146.55-4,341.20-1,819.31

Finding the Fourth Proportional to 3,146.55, 4,341.20 and 1,819.31

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Solution

The fourth proportional to 3,146.55, 4,341.20 and 1,819.31 is: 2,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.55 : 4,341.20 = 1,819.31 : x
  2. Step 2: Convert to fraction form
    3,146.55/4,341.20 = 1,819.31/x
  3. Step 3: Cross multiply
    3,146.55x = 4,341.20 × 1,819.31
  4. Step 4: Simplify right side
    3,146.55x = 7,897,982.19
  5. Step 5: Solve for x
    x = 7,897,982.19/3,146.55
  6. Step 6: Final answer
    x = 2,510.05

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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.