Home / 5,111.02-7,661.08-2,915.02

Finding the Fourth Proportional to 5,111.02, 7,661.08 and 2,915.02

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Solution

The fourth proportional to 5,111.02, 7,661.08 and 2,915.02 is: 4,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.02 : 7,661.08 = 2,915.02 : x
  2. Step 2: Convert to fraction form
    5,111.02/7,661.08 = 2,915.02/x
  3. Step 3: Cross multiply
    5,111.02x = 7,661.08 × 2,915.02
  4. Step 4: Simplify right side
    5,111.02x = 22,332,201.42
  5. Step 5: Solve for x
    x = 22,332,201.42/5,111.02
  6. Step 6: Final answer
    x = 4,369.42

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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.