Home / 2,897.28-3,979.56-2,841.96

Finding the Fourth Proportional to 2,897.28, 3,979.56 and 2,841.96

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Solution

The fourth proportional to 2,897.28, 3,979.56 and 2,841.96 is: 3,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.28 : 3,979.56 = 2,841.96 : x
  2. Step 2: Convert to fraction form
    2,897.28/3,979.56 = 2,841.96/x
  3. Step 3: Cross multiply
    2,897.28x = 3,979.56 × 2,841.96
  4. Step 4: Simplify right side
    2,897.28x = 11,309,750.34
  5. Step 5: Solve for x
    x = 11,309,750.34/2,897.28
  6. Step 6: Final answer
    x = 3,903.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.