Home / 3,336-5,001.24-1,389.60

Finding the Fourth Proportional to 3,336, 5,001.24 and 1,389.60

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Solution

The fourth proportional to 3,336, 5,001.24 and 1,389.60 is: 2,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336 : 5,001.24 = 1,389.60 : x
  2. Step 2: Convert to fraction form
    3,336/5,001.24 = 1,389.60/x
  3. Step 3: Cross multiply
    3,336x = 5,001.24 × 1,389.60
  4. Step 4: Simplify right side
    3,336x = 6,949,723.10
  5. Step 5: Solve for x
    x = 6,949,723.10/3,336
  6. Step 6: Final answer
    x = 2,083.25

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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.