Home / 7,316.20-10,961.70-3,412.60

Finding the Fourth Proportional to 7,316.20, 10,961.70 and 3,412.60

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Solution

The fourth proportional to 7,316.20, 10,961.70 and 3,412.60 is: 5,113.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.20 : 10,961.70 = 3,412.60 : x
  2. Step 2: Convert to fraction form
    7,316.20/10,961.70 = 3,412.60/x
  3. Step 3: Cross multiply
    7,316.20x = 10,961.70 × 3,412.60
  4. Step 4: Simplify right side
    7,316.20x = 37,407,897.42
  5. Step 5: Solve for x
    x = 37,407,897.42/7,316.20
  6. Step 6: Final answer
    x = 5,113.02

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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.