Home / 3,915.24-5,402.91-2,146.82

Finding the Fourth Proportional to 3,915.24, 5,402.91 and 2,146.82

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Solution

The fourth proportional to 3,915.24, 5,402.91 and 2,146.82 is: 2,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.24 : 5,402.91 = 2,146.82 : x
  2. Step 2: Convert to fraction form
    3,915.24/5,402.91 = 2,146.82/x
  3. Step 3: Cross multiply
    3,915.24x = 5,402.91 × 2,146.82
  4. Step 4: Simplify right side
    3,915.24x = 11,599,048.23
  5. Step 5: Solve for x
    x = 11,599,048.23/3,915.24
  6. Step 6: Final answer
    x = 2,962.54

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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.