Home / 2,125.10-2,932.49-1,180.80

Finding the Fourth Proportional to 2,125.10, 2,932.49 and 1,180.80

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Solution

The fourth proportional to 2,125.10, 2,932.49 and 1,180.80 is: 1,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.10 : 2,932.49 = 1,180.80 : x
  2. Step 2: Convert to fraction form
    2,125.10/2,932.49 = 1,180.80/x
  3. Step 3: Cross multiply
    2,125.10x = 2,932.49 × 1,180.80
  4. Step 4: Simplify right side
    2,125.10x = 3,462,678.29
  5. Step 5: Solve for x
    x = 3,462,678.29/2,125.10
  6. Step 6: Final answer
    x = 1,629.42

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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.