Home / 3,598.80-5,398.16-1,408.12

Finding the Fourth Proportional to 3,598.80, 5,398.16 and 1,408.12

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Solution

The fourth proportional to 3,598.80, 5,398.16 and 1,408.12 is: 2,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,598.80 : 5,398.16 = 1,408.12 : x
  2. Step 2: Convert to fraction form
    3,598.80/5,398.16 = 1,408.12/x
  3. Step 3: Cross multiply
    3,598.80x = 5,398.16 × 1,408.12
  4. Step 4: Simplify right side
    3,598.80x = 7,601,257.06
  5. Step 5: Solve for x
    x = 7,601,257.06/3,598.80
  6. Step 6: Final answer
    x = 2,112.16

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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.