Home / 7,219.21-9,962.10-4,234.82

Finding the Fourth Proportional to 7,219.21, 9,962.10 and 4,234.82

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Solution

The fourth proportional to 7,219.21, 9,962.10 and 4,234.82 is: 5,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.21 : 9,962.10 = 4,234.82 : x
  2. Step 2: Convert to fraction form
    7,219.21/9,962.10 = 4,234.82/x
  3. Step 3: Cross multiply
    7,219.21x = 9,962.10 × 4,234.82
  4. Step 4: Simplify right side
    7,219.21x = 42,187,700.32
  5. Step 5: Solve for x
    x = 42,187,700.32/7,219.21
  6. Step 6: Final answer
    x = 5,843.81

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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.