Home / 3,915.42-5,404.22-2,658.57

Finding the Fourth Proportional to 3,915.42, 5,404.22 and 2,658.57

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Solution

The fourth proportional to 3,915.42, 5,404.22 and 2,658.57 is: 3,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.42 : 5,404.22 = 2,658.57 : x
  2. Step 2: Convert to fraction form
    3,915.42/5,404.22 = 2,658.57/x
  3. Step 3: Cross multiply
    3,915.42x = 5,404.22 × 2,658.57
  4. Step 4: Simplify right side
    3,915.42x = 14,367,497.17
  5. Step 5: Solve for x
    x = 14,367,497.17/3,915.42
  6. Step 6: Final answer
    x = 3,669.47

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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.