Home / 2,069.90-3,103.05-1,851.20

Finding the Fourth Proportional to 2,069.90, 3,103.05 and 1,851.20

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Solution

The fourth proportional to 2,069.90, 3,103.05 and 1,851.20 is: 2,775.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.90 : 3,103.05 = 1,851.20 : x
  2. Step 2: Convert to fraction form
    2,069.90/3,103.05 = 1,851.20/x
  3. Step 3: Cross multiply
    2,069.90x = 3,103.05 × 1,851.20
  4. Step 4: Simplify right side
    2,069.90x = 5,744,366.16
  5. Step 5: Solve for x
    x = 5,744,366.16/2,069.90
  6. Step 6: Final answer
    x = 2,775.19

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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.