Home / 2,841.40-3,921.82-1,897.24

Finding the Fourth Proportional to 2,841.40, 3,921.82 and 1,897.24

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Solution

The fourth proportional to 2,841.40, 3,921.82 and 1,897.24 is: 2,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.40 : 3,921.82 = 1,897.24 : x
  2. Step 2: Convert to fraction form
    2,841.40/3,921.82 = 1,897.24/x
  3. Step 3: Cross multiply
    2,841.40x = 3,921.82 × 1,897.24
  4. Step 4: Simplify right side
    2,841.40x = 7,440,633.78
  5. Step 5: Solve for x
    x = 7,440,633.78/2,841.40
  6. Step 6: Final answer
    x = 2,618.65

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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.