Home / 3,490.65-5,237.78-2,321.48

Finding the Fourth Proportional to 3,490.65, 5,237.78 and 2,321.48

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Solution

The fourth proportional to 3,490.65, 5,237.78 and 2,321.48 is: 3,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.65 : 5,237.78 = 2,321.48 : x
  2. Step 2: Convert to fraction form
    3,490.65/5,237.78 = 2,321.48/x
  3. Step 3: Cross multiply
    3,490.65x = 5,237.78 × 2,321.48
  4. Step 4: Simplify right side
    3,490.65x = 12,159,401.51
  5. Step 5: Solve for x
    x = 12,159,401.51/3,490.65
  6. Step 6: Final answer
    x = 3,483.42

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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.