Home / 5,153.14-7,111.34-2,915.02

Finding the Fourth Proportional to 5,153.14, 7,111.34 and 2,915.02

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Solution

The fourth proportional to 5,153.14, 7,111.34 and 2,915.02 is: 4,022.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.14 : 7,111.34 = 2,915.02 : x
  2. Step 2: Convert to fraction form
    5,153.14/7,111.34 = 2,915.02/x
  3. Step 3: Cross multiply
    5,153.14x = 7,111.34 × 2,915.02
  4. Step 4: Simplify right side
    5,153.14x = 20,729,698.33
  5. Step 5: Solve for x
    x = 20,729,698.33/5,153.14
  6. Step 6: Final answer
    x = 4,022.73

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1.5x scale

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.