Home / 5,203.19-7,801.12-1,915.85

Finding the Fourth Proportional to 5,203.19, 7,801.12 and 1,915.85

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Solution

The fourth proportional to 5,203.19, 7,801.12 and 1,915.85 is: 2,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,203.19 : 7,801.12 = 1,915.85 : x
  2. Step 2: Convert to fraction form
    5,203.19/7,801.12 = 1,915.85/x
  3. Step 3: Cross multiply
    5,203.19x = 7,801.12 × 1,915.85
  4. Step 4: Simplify right side
    5,203.19x = 14,945,766.17
  5. Step 5: Solve for x
    x = 14,945,766.17/5,203.19
  6. Step 6: Final answer
    x = 2,872.43

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1.5x scale

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.