Home / 4,787.40-7,181.26-1,324.36

Finding the Fourth Proportional to 4,787.40, 7,181.26 and 1,324.36

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Solution

The fourth proportional to 4,787.40, 7,181.26 and 1,324.36 is: 1,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.40 : 7,181.26 = 1,324.36 : x
  2. Step 2: Convert to fraction form
    4,787.40/7,181.26 = 1,324.36/x
  3. Step 3: Cross multiply
    4,787.40x = 7,181.26 × 1,324.36
  4. Step 4: Simplify right side
    4,787.40x = 9,510,573.49
  5. Step 5: Solve for x
    x = 9,510,573.49/4,787.40
  6. Step 6: Final answer
    x = 1,986.58

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1.5x scale

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.