Home / 5,772.21-7,965.69-3,119.61

Finding the Fourth Proportional to 5,772.21, 7,965.69 and 3,119.61

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Solution

The fourth proportional to 5,772.21, 7,965.69 and 3,119.61 is: 4,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,772.21 : 7,965.69 = 3,119.61 : x
  2. Step 2: Convert to fraction form
    5,772.21/7,965.69 = 3,119.61/x
  3. Step 3: Cross multiply
    5,772.21x = 7,965.69 × 3,119.61
  4. Step 4: Simplify right side
    5,772.21x = 24,849,864.35
  5. Step 5: Solve for x
    x = 24,849,864.35/5,772.21
  6. Step 6: Final answer
    x = 4,305.09

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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.