Home / 7,220.43-9,961.38-4,235.16

Finding the Fourth Proportional to 7,220.43, 9,961.38 and 4,235.16

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Solution

The fourth proportional to 7,220.43, 9,961.38 and 4,235.16 is: 5,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.43 : 9,961.38 = 4,235.16 : x
  2. Step 2: Convert to fraction form
    7,220.43/9,961.38 = 4,235.16/x
  3. Step 3: Cross multiply
    7,220.43x = 9,961.38 × 4,235.16
  4. Step 4: Simplify right side
    7,220.43x = 42,188,038.12
  5. Step 5: Solve for x
    x = 42,188,038.12/7,220.43
  6. Step 6: Final answer
    x = 5,842.87

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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.