Home / 5,627.67-8,420.08-3,398.29

Finding the Fourth Proportional to 5,627.67, 8,420.08 and 3,398.29

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Solution

The fourth proportional to 5,627.67, 8,420.08 and 3,398.29 is: 5,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.67 : 8,420.08 = 3,398.29 : x
  2. Step 2: Convert to fraction form
    5,627.67/8,420.08 = 3,398.29/x
  3. Step 3: Cross multiply
    5,627.67x = 8,420.08 × 3,398.29
  4. Step 4: Simplify right side
    5,627.67x = 28,613,873.66
  5. Step 5: Solve for x
    x = 28,613,873.66/5,627.67
  6. Step 6: Final answer
    x = 5,084.50

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1.5x scale

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.