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Finding the Fourth Proportional to 2,803.88, 4,203.07 and 2,388.35

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Solution

The fourth proportional to 2,803.88, 4,203.07 and 2,388.35 is: 3,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.88 : 4,203.07 = 2,388.35 : x
  2. Step 2: Convert to fraction form
    2,803.88/4,203.07 = 2,388.35/x
  3. Step 3: Cross multiply
    2,803.88x = 4,203.07 × 2,388.35
  4. Step 4: Simplify right side
    2,803.88x = 10,038,420.21
  5. Step 5: Solve for x
    x = 10,038,420.21/2,803.88
  6. Step 6: Final answer
    x = 3,580.19

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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.