Home / 4,787.36-7,181.66-1,324.64

Finding the Fourth Proportional to 4,787.36, 7,181.66 and 1,324.64

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Solution

The fourth proportional to 4,787.36, 7,181.66 and 1,324.64 is: 1,987.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.36 : 7,181.66 = 1,324.64 : x
  2. Step 2: Convert to fraction form
    4,787.36/7,181.66 = 1,324.64/x
  3. Step 3: Cross multiply
    4,787.36x = 7,181.66 × 1,324.64
  4. Step 4: Simplify right side
    4,787.36x = 9,513,114.10
  5. Step 5: Solve for x
    x = 9,513,114.10/4,787.36
  6. Step 6: Final answer
    x = 1,987.13

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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.