Home / 3,613.31-5,420.12-1,273.62

Finding the Fourth Proportional to 3,613.31, 5,420.12 and 1,273.62

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Solution

The fourth proportional to 3,613.31, 5,420.12 and 1,273.62 is: 1,910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.31 : 5,420.12 = 1,273.62 : x
  2. Step 2: Convert to fraction form
    3,613.31/5,420.12 = 1,273.62/x
  3. Step 3: Cross multiply
    3,613.31x = 5,420.12 × 1,273.62
  4. Step 4: Simplify right side
    3,613.31x = 6,903,187.19
  5. Step 5: Solve for x
    x = 6,903,187.19/3,613.31
  6. Step 6: Final answer
    x = 1,910.49

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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.