Home / 4,788.50-7,183.17-1,325.78

Finding the Fourth Proportional to 4,788.50, 7,183.17 and 1,325.78

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Solution

The fourth proportional to 4,788.50, 7,183.17 and 1,325.78 is: 1,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.50 : 7,183.17 = 1,325.78 : x
  2. Step 2: Convert to fraction form
    4,788.50/7,183.17 = 1,325.78/x
  3. Step 3: Cross multiply
    4,788.50x = 7,183.17 × 1,325.78
  4. Step 4: Simplify right side
    4,788.50x = 9,523,303.12
  5. Step 5: Solve for x
    x = 9,523,303.12/4,788.50
  6. Step 6: Final answer
    x = 1,988.79

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Double scale
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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.