Home / 1,790.28-2,681.91-1,418.00

Finding the Fourth Proportional to 1,790.28, 2,681.91 and 1,418.00

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Solution

The fourth proportional to 1,790.28, 2,681.91 and 1,418.00 is: 2,124.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.28 : 2,681.91 = 1,418.00 : x
  2. Step 2: Convert to fraction form
    1,790.28/2,681.91 = 1,418.00/x
  3. Step 3: Cross multiply
    1,790.28x = 2,681.91 × 1,418.00
  4. Step 4: Simplify right side
    1,790.28x = 3,802,934.97
  5. Step 5: Solve for x
    x = 3,802,934.97/1,790.28
  6. Step 6: Final answer
    x = 2,124.21

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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.