Home / 2,175.13-3,001.71-1,180.45

Finding the Fourth Proportional to 2,175.13, 3,001.71 and 1,180.45

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Solution

The fourth proportional to 2,175.13, 3,001.71 and 1,180.45 is: 1,629.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.13 : 3,001.71 = 1,180.45 : x
  2. Step 2: Convert to fraction form
    2,175.13/3,001.71 = 1,180.45/x
  3. Step 3: Cross multiply
    2,175.13x = 3,001.71 × 1,180.45
  4. Step 4: Simplify right side
    2,175.13x = 3,543,368.57
  5. Step 5: Solve for x
    x = 3,543,368.57/2,175.13
  6. Step 6: Final answer
    x = 1,629.04

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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.