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Finding the Fourth Proportional to 4,801.85, 7,202.71 and 1,680.99

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Solution

The fourth proportional to 4,801.85, 7,202.71 and 1,680.99 is: 2,521.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,801.85 : 7,202.71 = 1,680.99 : x
  2. Step 2: Convert to fraction form
    4,801.85/7,202.71 = 1,680.99/x
  3. Step 3: Cross multiply
    4,801.85x = 7,202.71 × 1,680.99
  4. Step 4: Simplify right side
    4,801.85x = 12,107,649.12
  5. Step 5: Solve for x
    x = 12,107,649.12/4,801.85
  6. Step 6: Final answer
    x = 2,521.46

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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.