Home / 7,222.84-9,967.39-4,036.20

Finding the Fourth Proportional to 7,222.84, 9,967.39 and 4,036.20

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Solution

The fourth proportional to 7,222.84, 9,967.39 and 4,036.20 is: 5,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.84 : 9,967.39 = 4,036.20 : x
  2. Step 2: Convert to fraction form
    7,222.84/9,967.39 = 4,036.20/x
  3. Step 3: Cross multiply
    7,222.84x = 9,967.39 × 4,036.20
  4. Step 4: Simplify right side
    7,222.84x = 40,230,379.52
  5. Step 5: Solve for x
    x = 40,230,379.52/7,222.84
  6. Step 6: Final answer
    x = 5,569.88

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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.