Home / 2,869.39-3,960.57-1,691.14

Finding the Fourth Proportional to 2,869.39, 3,960.57 and 1,691.14

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Solution

The fourth proportional to 2,869.39, 3,960.57 and 1,691.14 is: 2,334.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.39 : 3,960.57 = 1,691.14 : x
  2. Step 2: Convert to fraction form
    2,869.39/3,960.57 = 1,691.14/x
  3. Step 3: Cross multiply
    2,869.39x = 3,960.57 × 1,691.14
  4. Step 4: Simplify right side
    2,869.39x = 6,697,878.35
  5. Step 5: Solve for x
    x = 6,697,878.35/2,869.39
  6. Step 6: Final answer
    x = 2,334.25

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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.