Home / 3,868.35-5,802.80-1,403.18

Finding the Fourth Proportional to 3,868.35, 5,802.80 and 1,403.18

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Solution

The fourth proportional to 3,868.35, 5,802.80 and 1,403.18 is: 2,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.35 : 5,802.80 = 1,403.18 : x
  2. Step 2: Convert to fraction form
    3,868.35/5,802.80 = 1,403.18/x
  3. Step 3: Cross multiply
    3,868.35x = 5,802.80 × 1,403.18
  4. Step 4: Simplify right side
    3,868.35x = 8,142,372.90
  5. Step 5: Solve for x
    x = 8,142,372.90/3,868.35
  6. Step 6: Final answer
    x = 2,104.87

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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.