Home / 2,164.92-2,981.82-1,869.66

Finding the Fourth Proportional to 2,164.92, 2,981.82 and 1,869.66

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Solution

The fourth proportional to 2,164.92, 2,981.82 and 1,869.66 is: 2,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.92 : 2,981.82 = 1,869.66 : x
  2. Step 2: Convert to fraction form
    2,164.92/2,981.82 = 1,869.66/x
  3. Step 3: Cross multiply
    2,164.92x = 2,981.82 × 1,869.66
  4. Step 4: Simplify right side
    2,164.92x = 5,574,989.58
  5. Step 5: Solve for x
    x = 5,574,989.58/2,164.92
  6. Step 6: Final answer
    x = 2,575.15

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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.