Home / 2,915.88-4,355.84-2,622.92

Finding the Fourth Proportional to 2,915.88, 4,355.84 and 2,622.92

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Solution

The fourth proportional to 2,915.88, 4,355.84 and 2,622.92 is: 3,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.88 : 4,355.84 = 2,622.92 : x
  2. Step 2: Convert to fraction form
    2,915.88/4,355.84 = 2,622.92/x
  3. Step 3: Cross multiply
    2,915.88x = 4,355.84 × 2,622.92
  4. Step 4: Simplify right side
    2,915.88x = 11,425,019.85
  5. Step 5: Solve for x
    x = 11,425,019.85/2,915.88
  6. Step 6: Final answer
    x = 3,918.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.