Home / 3,637.80-5,018.40-2,458.80

Finding the Fourth Proportional to 3,637.80, 5,018.40 and 2,458.80

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Solution

The fourth proportional to 3,637.80, 5,018.40 and 2,458.80 is: 3,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.80 : 5,018.40 = 2,458.80 : x
  2. Step 2: Convert to fraction form
    3,637.80/5,018.40 = 2,458.80/x
  3. Step 3: Cross multiply
    3,637.80x = 5,018.40 × 2,458.80
  4. Step 4: Simplify right side
    3,637.80x = 12,339,241.92
  5. Step 5: Solve for x
    x = 12,339,241.92/3,637.80
  6. Step 6: Final answer
    x = 3,391.95

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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.