Home / 5,609.18-7,740.31-3,090.86

Finding the Fourth Proportional to 5,609.18, 7,740.31 and 3,090.86

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Solution

The fourth proportional to 5,609.18, 7,740.31 and 3,090.86 is: 4,265.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.18 : 7,740.31 = 3,090.86 : x
  2. Step 2: Convert to fraction form
    5,609.18/7,740.31 = 3,090.86/x
  3. Step 3: Cross multiply
    5,609.18x = 7,740.31 × 3,090.86
  4. Step 4: Simplify right side
    5,609.18x = 23,924,214.57
  5. Step 5: Solve for x
    x = 23,924,214.57/5,609.18
  6. Step 6: Final answer
    x = 4,265.19

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1.5x scale

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.