Home / 2,175.70-3,247.62-1,869.52

Finding the Fourth Proportional to 2,175.70, 3,247.62 and 1,869.52

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Solution

The fourth proportional to 2,175.70, 3,247.62 and 1,869.52 is: 2,790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.70 : 3,247.62 = 1,869.52 : x
  2. Step 2: Convert to fraction form
    2,175.70/3,247.62 = 1,869.52/x
  3. Step 3: Cross multiply
    2,175.70x = 3,247.62 × 1,869.52
  4. Step 4: Simplify right side
    2,175.70x = 6,071,490.54
  5. Step 5: Solve for x
    x = 6,071,490.54/2,175.70
  6. Step 6: Final answer
    x = 2,790.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.