Home / 3,817.19-5,726.09-1,220.13

Finding the Fourth Proportional to 3,817.19, 5,726.09 and 1,220.13

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Solution

The fourth proportional to 3,817.19, 5,726.09 and 1,220.13 is: 1,830.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.19 : 5,726.09 = 1,220.13 : x
  2. Step 2: Convert to fraction form
    3,817.19/5,726.09 = 1,220.13/x
  3. Step 3: Cross multiply
    3,817.19x = 5,726.09 × 1,220.13
  4. Step 4: Simplify right side
    3,817.19x = 6,986,574.19
  5. Step 5: Solve for x
    x = 6,986,574.19/3,817.19
  6. Step 6: Final answer
    x = 1,830.29

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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.