Home / 2,298.45-3,172.56-2,180.88

Finding the Fourth Proportional to 2,298.45, 3,172.56 and 2,180.88

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Solution

The fourth proportional to 2,298.45, 3,172.56 and 2,180.88 is: 3,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,298.45 : 3,172.56 = 2,180.88 : x
  2. Step 2: Convert to fraction form
    2,298.45/3,172.56 = 2,180.88/x
  3. Step 3: Cross multiply
    2,298.45x = 3,172.56 × 2,180.88
  4. Step 4: Simplify right side
    2,298.45x = 6,918,972.65
  5. Step 5: Solve for x
    x = 6,918,972.65/2,298.45
  6. Step 6: Final answer
    x = 3,010.28

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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.