Home / 5,090.35-7,631.19-2,316.05

Finding the Fourth Proportional to 5,090.35, 7,631.19 and 2,316.05

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Solution

The fourth proportional to 5,090.35, 7,631.19 and 2,316.05 is: 3,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.35 : 7,631.19 = 2,316.05 : x
  2. Step 2: Convert to fraction form
    5,090.35/7,631.19 = 2,316.05/x
  3. Step 3: Cross multiply
    5,090.35x = 7,631.19 × 2,316.05
  4. Step 4: Simplify right side
    5,090.35x = 17,674,217.60
  5. Step 5: Solve for x
    x = 17,674,217.60/5,090.35
  6. Step 6: Final answer
    x = 3,472.10

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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.