Home / 3,518.49-5,278.55-1,327.26

Finding the Fourth Proportional to 3,518.49, 5,278.55 and 1,327.26

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Solution

The fourth proportional to 3,518.49, 5,278.55 and 1,327.26 is: 1,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.49 : 5,278.55 = 1,327.26 : x
  2. Step 2: Convert to fraction form
    3,518.49/5,278.55 = 1,327.26/x
  3. Step 3: Cross multiply
    3,518.49x = 5,278.55 × 1,327.26
  4. Step 4: Simplify right side
    3,518.49x = 7,006,001.64
  5. Step 5: Solve for x
    x = 7,006,001.64/3,518.49
  6. Step 6: Final answer
    x = 1,991.20

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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.