Home / 3,459.74-5,192.11-1,378.54

Finding the Fourth Proportional to 3,459.74, 5,192.11 and 1,378.54

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Solution

The fourth proportional to 3,459.74, 5,192.11 and 1,378.54 is: 2,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.74 : 5,192.11 = 1,378.54 : x
  2. Step 2: Convert to fraction form
    3,459.74/5,192.11 = 1,378.54/x
  3. Step 3: Cross multiply
    3,459.74x = 5,192.11 × 1,378.54
  4. Step 4: Simplify right side
    3,459.74x = 7,157,514.89
  5. Step 5: Solve for x
    x = 7,157,514.89/3,459.74
  6. Step 6: Final answer
    x = 2,068.80

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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.