Home / 7,842.28-10,822.38-4,305.88

Finding the Fourth Proportional to 7,842.28, 10,822.38 and 4,305.88

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Solution

The fourth proportional to 7,842.28, 10,822.38 and 4,305.88 is: 5,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.28 : 10,822.38 = 4,305.88 : x
  2. Step 2: Convert to fraction form
    7,842.28/10,822.38 = 4,305.88/x
  3. Step 3: Cross multiply
    7,842.28x = 10,822.38 × 4,305.88
  4. Step 4: Simplify right side
    7,842.28x = 46,599,869.59
  5. Step 5: Solve for x
    x = 46,599,869.59/7,842.28
  6. Step 6: Final answer
    x = 5,942.13

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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.