Home / 2,869.92-3,960.93-1,691.10

Finding the Fourth Proportional to 2,869.92, 3,960.93 and 1,691.10

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Solution

The fourth proportional to 2,869.92, 3,960.93 and 1,691.10 is: 2,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.92 : 3,960.93 = 1,691.10 : x
  2. Step 2: Convert to fraction form
    2,869.92/3,960.93 = 1,691.10/x
  3. Step 3: Cross multiply
    2,869.92x = 3,960.93 × 1,691.10
  4. Step 4: Simplify right side
    2,869.92x = 6,698,328.72
  5. Step 5: Solve for x
    x = 6,698,328.72/2,869.92
  6. Step 6: Final answer
    x = 2,333.98

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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.