Home / 1,709.43-2,359.04-1,001.78

Finding the Fourth Proportional to 1,709.43, 2,359.04 and 1,001.78

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Solution

The fourth proportional to 1,709.43, 2,359.04 and 1,001.78 is: 1,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.43 : 2,359.04 = 1,001.78 : x
  2. Step 2: Convert to fraction form
    1,709.43/2,359.04 = 1,001.78/x
  3. Step 3: Cross multiply
    1,709.43x = 2,359.04 × 1,001.78
  4. Step 4: Simplify right side
    1,709.43x = 2,363,247.49
  5. Step 5: Solve for x
    x = 2,363,247.49/1,709.43
  6. Step 6: Final answer
    x = 1,382.48

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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.