Home / 7,020.50-9,688.29-4,226.54

Finding the Fourth Proportional to 7,020.50, 9,688.29 and 4,226.54

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Solution

The fourth proportional to 7,020.50, 9,688.29 and 4,226.54 is: 5,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.50 : 9,688.29 = 4,226.54 : x
  2. Step 2: Convert to fraction form
    7,020.50/9,688.29 = 4,226.54/x
  3. Step 3: Cross multiply
    7,020.50x = 9,688.29 × 4,226.54
  4. Step 4: Simplify right side
    7,020.50x = 40,947,945.22
  5. Step 5: Solve for x
    x = 40,947,945.22/7,020.50
  6. Step 6: Final answer
    x = 5,832.63

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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.