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Finding the Fourth Proportional to 4,641.99, 6,961.48 and 1,521.15

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Solution

The fourth proportional to 4,641.99, 6,961.48 and 1,521.15 is: 2,281.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.99 : 6,961.48 = 1,521.15 : x
  2. Step 2: Convert to fraction form
    4,641.99/6,961.48 = 1,521.15/x
  3. Step 3: Cross multiply
    4,641.99x = 6,961.48 × 1,521.15
  4. Step 4: Simplify right side
    4,641.99x = 10,589,455.30
  5. Step 5: Solve for x
    x = 10,589,455.30/4,641.99
  6. Step 6: Final answer
    x = 2,281.23

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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.