Home / 7,869.88-11,802.93-2,321.72

Finding the Fourth Proportional to 7,869.88, 11,802.93 and 2,321.72

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Solution

The fourth proportional to 7,869.88, 11,802.93 and 2,321.72 is: 3,482.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.88 : 11,802.93 = 2,321.72 : x
  2. Step 2: Convert to fraction form
    7,869.88/11,802.93 = 2,321.72/x
  3. Step 3: Cross multiply
    7,869.88x = 11,802.93 × 2,321.72
  4. Step 4: Simplify right side
    7,869.88x = 27,403,098.64
  5. Step 5: Solve for x
    x = 27,403,098.64/7,869.88
  6. Step 6: Final answer
    x = 3,482.02

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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.