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Finding the Fourth Proportional to 4,903.85, 7,353.46 and 1,781.65

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Solution

The fourth proportional to 4,903.85, 7,353.46 and 1,781.65 is: 2,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.85 : 7,353.46 = 1,781.65 : x
  2. Step 2: Convert to fraction form
    4,903.85/7,353.46 = 1,781.65/x
  3. Step 3: Cross multiply
    4,903.85x = 7,353.46 × 1,781.65
  4. Step 4: Simplify right side
    4,903.85x = 13,101,310.39
  5. Step 5: Solve for x
    x = 13,101,310.39/4,903.85
  6. Step 6: Final answer
    x = 2,671.64

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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.