Home / 4,768.39-7,152.12-2,918.55

Finding the Fourth Proportional to 4,768.39, 7,152.12 and 2,918.55

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Solution

The fourth proportional to 4,768.39, 7,152.12 and 2,918.55 is: 4,377.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,768.39 : 7,152.12 = 2,918.55 : x
  2. Step 2: Convert to fraction form
    4,768.39/7,152.12 = 2,918.55/x
  3. Step 3: Cross multiply
    4,768.39x = 7,152.12 × 2,918.55
  4. Step 4: Simplify right side
    4,768.39x = 20,873,819.83
  5. Step 5: Solve for x
    x = 20,873,819.83/4,768.39
  6. Step 6: Final answer
    x = 4,377.54

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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.