Home / 3,418.80-4,717.96-2,002.16

Finding the Fourth Proportional to 3,418.80, 4,717.96 and 2,002.16

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Solution

The fourth proportional to 3,418.80, 4,717.96 and 2,002.16 is: 2,762.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.80 : 4,717.96 = 2,002.16 : x
  2. Step 2: Convert to fraction form
    3,418.80/4,717.96 = 2,002.16/x
  3. Step 3: Cross multiply
    3,418.80x = 4,717.96 × 2,002.16
  4. Step 4: Simplify right side
    3,418.80x = 9,446,110.79
  5. Step 5: Solve for x
    x = 9,446,110.79/3,418.80
  6. Step 6: Final answer
    x = 2,762.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.