Home / 2,424.12-3,348-2,161.68

Finding the Fourth Proportional to 2,424.12, 3,348 and 2,161.68

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Solution

The fourth proportional to 2,424.12, 3,348 and 2,161.68 is: 2,985.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.12 : 3,348 = 2,161.68 : x
  2. Step 2: Convert to fraction form
    2,424.12/3,348 = 2,161.68/x
  3. Step 3: Cross multiply
    2,424.12x = 3,348 × 2,161.68
  4. Step 4: Simplify right side
    2,424.12x = 7,237,304.64
  5. Step 5: Solve for x
    x = 7,237,304.64/2,424.12
  6. Step 6: Final answer
    x = 2,985.54

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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.