Home / 1,869.74-2,806.43-1,426.85

Finding the Fourth Proportional to 1,869.74, 2,806.43 and 1,426.85

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Solution

The fourth proportional to 1,869.74, 2,806.43 and 1,426.85 is: 2,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.74 : 2,806.43 = 1,426.85 : x
  2. Step 2: Convert to fraction form
    1,869.74/2,806.43 = 1,426.85/x
  3. Step 3: Cross multiply
    1,869.74x = 2,806.43 × 1,426.85
  4. Step 4: Simplify right side
    1,869.74x = 4,004,333.48
  5. Step 5: Solve for x
    x = 4,004,333.48/1,869.74
  6. Step 6: Final answer
    x = 2,141.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.