Home / 7,222.03-9,966.54-4,077.61

Finding the Fourth Proportional to 7,222.03, 9,966.54 and 4,077.61

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Solution

The fourth proportional to 7,222.03, 9,966.54 and 4,077.61 is: 5,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.03 : 9,966.54 = 4,077.61 : x
  2. Step 2: Convert to fraction form
    7,222.03/9,966.54 = 4,077.61/x
  3. Step 3: Cross multiply
    7,222.03x = 9,966.54 × 4,077.61
  4. Step 4: Simplify right side
    7,222.03x = 40,639,653.54
  5. Step 5: Solve for x
    x = 40,639,653.54/7,222.03
  6. Step 6: Final answer
    x = 5,627.18

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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.