Home / 2,798.61-3,862.09-1,539.75

Finding the Fourth Proportional to 2,798.61, 3,862.09 and 1,539.75

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Solution

The fourth proportional to 2,798.61, 3,862.09 and 1,539.75 is: 2,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.61 : 3,862.09 = 1,539.75 : x
  2. Step 2: Convert to fraction form
    2,798.61/3,862.09 = 1,539.75/x
  3. Step 3: Cross multiply
    2,798.61x = 3,862.09 × 1,539.75
  4. Step 4: Simplify right side
    2,798.61x = 5,946,653.08
  5. Step 5: Solve for x
    x = 5,946,653.08/2,798.61
  6. Step 6: Final answer
    x = 2,124.86

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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.