Home / 2,175.10-3,001.65-1,180.39

Finding the Fourth Proportional to 2,175.10, 3,001.65 and 1,180.39

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Solution

The fourth proportional to 2,175.10, 3,001.65 and 1,180.39 is: 1,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.10 : 3,001.65 = 1,180.39 : x
  2. Step 2: Convert to fraction form
    2,175.10/3,001.65 = 1,180.39/x
  3. Step 3: Cross multiply
    2,175.10x = 3,001.65 × 1,180.39
  4. Step 4: Simplify right side
    2,175.10x = 3,543,096.73
  5. Step 5: Solve for x
    x = 3,543,096.73/2,175.10
  6. Step 6: Final answer
    x = 1,628.94

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Half scale
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Double scale
Find fourth proportional to 2,176.10, 3,003.03 and 1,181.39
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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.