Home / 2,383.16-3,288.96-1,388.53

Finding the Fourth Proportional to 2,383.16, 3,288.96 and 1,388.53

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Solution

The fourth proportional to 2,383.16, 3,288.96 and 1,388.53 is: 1,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.16 : 3,288.96 = 1,388.53 : x
  2. Step 2: Convert to fraction form
    2,383.16/3,288.96 = 1,388.53/x
  3. Step 3: Cross multiply
    2,383.16x = 3,288.96 × 1,388.53
  4. Step 4: Simplify right side
    2,383.16x = 4,566,811.41
  5. Step 5: Solve for x
    x = 4,566,811.41/2,383.16
  6. Step 6: Final answer
    x = 1,916.29

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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.