Home / 7,857.42-10,842.97-4,320.61

Finding the Fourth Proportional to 7,857.42, 10,842.97 and 4,320.61

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Solution

The fourth proportional to 7,857.42, 10,842.97 and 4,320.61 is: 5,962.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.42 : 10,842.97 = 4,320.61 : x
  2. Step 2: Convert to fraction form
    7,857.42/10,842.97 = 4,320.61/x
  3. Step 3: Cross multiply
    7,857.42x = 10,842.97 × 4,320.61
  4. Step 4: Simplify right side
    7,857.42x = 46,848,244.61
  5. Step 5: Solve for x
    x = 46,848,244.61/7,857.42
  6. Step 6: Final answer
    x = 5,962.29

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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.