Home / 3,838.40-5,762.20-2,602.06

Finding the Fourth Proportional to 3,838.40, 5,762.20 and 2,602.06

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Solution

The fourth proportional to 3,838.40, 5,762.20 and 2,602.06 is: 3,906.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.40 : 5,762.20 = 2,602.06 : x
  2. Step 2: Convert to fraction form
    3,838.40/5,762.20 = 2,602.06/x
  3. Step 3: Cross multiply
    3,838.40x = 5,762.20 × 2,602.06
  4. Step 4: Simplify right side
    3,838.40x = 14,993,590.13
  5. Step 5: Solve for x
    x = 14,993,590.13/3,838.40
  6. Step 6: Final answer
    x = 3,906.21

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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.