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Finding the Fourth Proportional to 3,888.54, 5,833.12 and 1,915.23

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Solution

The fourth proportional to 3,888.54, 5,833.12 and 1,915.23 is: 2,873.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.54 : 5,833.12 = 1,915.23 : x
  2. Step 2: Convert to fraction form
    3,888.54/5,833.12 = 1,915.23/x
  3. Step 3: Cross multiply
    3,888.54x = 5,833.12 × 1,915.23
  4. Step 4: Simplify right side
    3,888.54x = 11,171,790.69
  5. Step 5: Solve for x
    x = 11,171,790.69/3,888.54
  6. Step 6: Final answer
    x = 2,873.00

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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.