Home / 2,894.14-3,988.12-2,008.40

Finding the Fourth Proportional to 2,894.14, 3,988.12 and 2,008.40

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Solution

The fourth proportional to 2,894.14, 3,988.12 and 2,008.40 is: 2,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.14 : 3,988.12 = 2,008.40 : x
  2. Step 2: Convert to fraction form
    2,894.14/3,988.12 = 2,008.40/x
  3. Step 3: Cross multiply
    2,894.14x = 3,988.12 × 2,008.40
  4. Step 4: Simplify right side
    2,894.14x = 8,009,755.20
  5. Step 5: Solve for x
    x = 8,009,755.20/2,894.14
  6. Step 6: Final answer
    x = 2,767.58

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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.