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Finding the Fourth Proportional to 3,187.99, 4,773.12 and 2,405.63

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Solution

The fourth proportional to 3,187.99, 4,773.12 and 2,405.63 is: 3,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.99 : 4,773.12 = 2,405.63 : x
  2. Step 2: Convert to fraction form
    3,187.99/4,773.12 = 2,405.63/x
  3. Step 3: Cross multiply
    3,187.99x = 4,773.12 × 2,405.63
  4. Step 4: Simplify right side
    3,187.99x = 11,482,360.67
  5. Step 5: Solve for x
    x = 11,482,360.67/3,187.99
  6. Step 6: Final answer
    x = 3,601.76

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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.