Home / 5,091.70-7,022.66-4,384.78

Finding the Fourth Proportional to 5,091.70, 7,022.66 and 4,384.78

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Solution

The fourth proportional to 5,091.70, 7,022.66 and 4,384.78 is: 6,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.70 : 7,022.66 = 4,384.78 : x
  2. Step 2: Convert to fraction form
    5,091.70/7,022.66 = 4,384.78/x
  3. Step 3: Cross multiply
    5,091.70x = 7,022.66 × 4,384.78
  4. Step 4: Simplify right side
    5,091.70x = 30,792,819.11
  5. Step 5: Solve for x
    x = 30,792,819.11/5,091.70
  6. Step 6: Final answer
    x = 6,047.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.