Home / 3,817.94-5,726.55-1,220.18

Finding the Fourth Proportional to 3,817.94, 5,726.55 and 1,220.18

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Solution

The fourth proportional to 3,817.94, 5,726.55 and 1,220.18 is: 1,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.94 : 5,726.55 = 1,220.18 : x
  2. Step 2: Convert to fraction form
    3,817.94/5,726.55 = 1,220.18/x
  3. Step 3: Cross multiply
    3,817.94x = 5,726.55 × 1,220.18
  4. Step 4: Simplify right side
    3,817.94x = 6,987,421.78
  5. Step 5: Solve for x
    x = 6,987,421.78/3,817.94
  6. Step 6: Final answer
    x = 1,830.15

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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.