Home / 1,426.93-1,969.14-1,006.84

Finding the Fourth Proportional to 1,426.93, 1,969.14 and 1,006.84

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Solution

The fourth proportional to 1,426.93, 1,969.14 and 1,006.84 is: 1,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.93 : 1,969.14 = 1,006.84 : x
  2. Step 2: Convert to fraction form
    1,426.93/1,969.14 = 1,006.84/x
  3. Step 3: Cross multiply
    1,426.93x = 1,969.14 × 1,006.84
  4. Step 4: Simplify right side
    1,426.93x = 1,982,608.92
  5. Step 5: Solve for x
    x = 1,982,608.92/1,426.93
  6. Step 6: Final answer
    x = 1,389.42

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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.