Home / 3,868.50-5,802.74-1,403.31

Finding the Fourth Proportional to 3,868.50, 5,802.74 and 1,403.31

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Solution

The fourth proportional to 3,868.50, 5,802.74 and 1,403.31 is: 2,104.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.50 : 5,802.74 = 1,403.31 : x
  2. Step 2: Convert to fraction form
    3,868.50/5,802.74 = 1,403.31/x
  3. Step 3: Cross multiply
    3,868.50x = 5,802.74 × 1,403.31
  4. Step 4: Simplify right side
    3,868.50x = 8,143,036.05
  5. Step 5: Solve for x
    x = 8,143,036.05/3,868.50
  6. Step 6: Final answer
    x = 2,104.96

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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.