Home / 2,897.14-3,982.58-2,878.92

Finding the Fourth Proportional to 2,897.14, 3,982.58 and 2,878.92

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Solution

The fourth proportional to 2,897.14, 3,982.58 and 2,878.92 is: 3,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.14 : 3,982.58 = 2,878.92 : x
  2. Step 2: Convert to fraction form
    2,897.14/3,982.58 = 2,878.92/x
  3. Step 3: Cross multiply
    2,897.14x = 3,982.58 × 2,878.92
  4. Step 4: Simplify right side
    2,897.14x = 11,465,529.21
  5. Step 5: Solve for x
    x = 11,465,529.21/2,897.14
  6. Step 6: Final answer
    x = 3,957.53

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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.