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Finding the Fourth Proportional to 4,764.83, 7,147.51 and 1,478.39

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Solution

The fourth proportional to 4,764.83, 7,147.51 and 1,478.39 is: 2,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,764.83 : 7,147.51 = 1,478.39 : x
  2. Step 2: Convert to fraction form
    4,764.83/7,147.51 = 1,478.39/x
  3. Step 3: Cross multiply
    4,764.83x = 7,147.51 × 1,478.39
  4. Step 4: Simplify right side
    4,764.83x = 10,566,771.57
  5. Step 5: Solve for x
    x = 10,566,771.57/4,764.83
  6. Step 6: Final answer
    x = 2,217.66

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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.