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Finding the Fourth Proportional to 2,437, 3,362.18 and 1,388.68

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Solution

The fourth proportional to 2,437, 3,362.18 and 1,388.68 is: 1,915.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,437 : 3,362.18 = 1,388.68 : x
  2. Step 2: Convert to fraction form
    2,437/3,362.18 = 1,388.68/x
  3. Step 3: Cross multiply
    2,437x = 3,362.18 × 1,388.68
  4. Step 4: Simplify right side
    2,437x = 4,668,992.12
  5. Step 5: Solve for x
    x = 4,668,992.12/2,437
  6. Step 6: Final answer
    x = 1,915.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.