Home / 7,318.89-10,980-2,321.58

Finding the Fourth Proportional to 7,318.89, 10,980 and 2,321.58

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Solution

The fourth proportional to 7,318.89, 10,980 and 2,321.58 is: 3,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.89 : 10,980 = 2,321.58 : x
  2. Step 2: Convert to fraction form
    7,318.89/10,980 = 2,321.58/x
  3. Step 3: Cross multiply
    7,318.89x = 10,980 × 2,321.58
  4. Step 4: Simplify right side
    7,318.89x = 25,490,948.40
  5. Step 5: Solve for x
    x = 25,490,948.40/7,318.89
  6. Step 6: Final answer
    x = 3,482.90

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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.