Home / 3,972.48-5,482.08-2,316.48

Finding the Fourth Proportional to 3,972.48, 5,482.08 and 2,316.48

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Solution

The fourth proportional to 3,972.48, 5,482.08 and 2,316.48 is: 3,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.48 : 5,482.08 = 2,316.48 : x
  2. Step 2: Convert to fraction form
    3,972.48/5,482.08 = 2,316.48/x
  3. Step 3: Cross multiply
    3,972.48x = 5,482.08 × 2,316.48
  4. Step 4: Simplify right side
    3,972.48x = 12,699,128.68
  5. Step 5: Solve for x
    x = 12,699,128.68/3,972.48
  6. Step 6: Final answer
    x = 3,196.78

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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.