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Finding the Fourth Proportional to 3,364.89, 5,046.93 and 899.90

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Solution

The fourth proportional to 3,364.89, 5,046.93 and 899.90 is: 1,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.89 : 5,046.93 = 899.90 : x
  2. Step 2: Convert to fraction form
    3,364.89/5,046.93 = 899.90/x
  3. Step 3: Cross multiply
    3,364.89x = 5,046.93 × 899.90
  4. Step 4: Simplify right side
    3,364.89x = 4,541,718.22
  5. Step 5: Solve for x
    x = 4,541,718.22/3,364.89
  6. Step 6: Final answer
    x = 1,349.74

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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.