Home / 3,931.07-5,424.98-2,162.73

Finding the Fourth Proportional to 3,931.07, 5,424.98 and 2,162.73

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Solution

The fourth proportional to 3,931.07, 5,424.98 and 2,162.73 is: 2,984.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.07 : 5,424.98 = 2,162.73 : x
  2. Step 2: Convert to fraction form
    3,931.07/5,424.98 = 2,162.73/x
  3. Step 3: Cross multiply
    3,931.07x = 5,424.98 × 2,162.73
  4. Step 4: Simplify right side
    3,931.07x = 11,732,767.00
  5. Step 5: Solve for x
    x = 11,732,767.00/3,931.07
  6. Step 6: Final answer
    x = 2,984.62

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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.