Home / 3,817.44-5,726.07-1,220.40

Finding the Fourth Proportional to 3,817.44, 5,726.07 and 1,220.40

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Solution

The fourth proportional to 3,817.44, 5,726.07 and 1,220.40 is: 1,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.44 : 5,726.07 = 1,220.40 : x
  2. Step 2: Convert to fraction form
    3,817.44/5,726.07 = 1,220.40/x
  3. Step 3: Cross multiply
    3,817.44x = 5,726.07 × 1,220.40
  4. Step 4: Simplify right side
    3,817.44x = 6,988,095.83
  5. Step 5: Solve for x
    x = 6,988,095.83/3,817.44
  6. Step 6: Final answer
    x = 1,830.57

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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.