Home / 7,222.23-9,966.75-4,238.12

Finding the Fourth Proportional to 7,222.23, 9,966.75 and 4,238.12

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Solution

The fourth proportional to 7,222.23, 9,966.75 and 4,238.12 is: 5,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.23 : 9,966.75 = 4,238.12 : x
  2. Step 2: Convert to fraction form
    7,222.23/9,966.75 = 4,238.12/x
  3. Step 3: Cross multiply
    7,222.23x = 9,966.75 × 4,238.12
  4. Step 4: Simplify right side
    7,222.23x = 42,240,211.49
  5. Step 5: Solve for x
    x = 42,240,211.49/7,222.23
  6. Step 6: Final answer
    x = 5,848.64

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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.