Home / 8,722.98-13,079.61-2,878.02

Finding the Fourth Proportional to 8,722.98, 13,079.61 and 2,878.02

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Solution

The fourth proportional to 8,722.98, 13,079.61 and 2,878.02 is: 4,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.98 : 13,079.61 = 2,878.02 : x
  2. Step 2: Convert to fraction form
    8,722.98/13,079.61 = 2,878.02/x
  3. Step 3: Cross multiply
    8,722.98x = 13,079.61 × 2,878.02
  4. Step 4: Simplify right side
    8,722.98x = 37,643,379.17
  5. Step 5: Solve for x
    x = 37,643,379.17/8,722.98
  6. Step 6: Final answer
    x = 4,315.43

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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.