Home / 3,931.22-5,424.53-2,162.94

Finding the Fourth Proportional to 3,931.22, 5,424.53 and 2,162.94

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Solution

The fourth proportional to 3,931.22, 5,424.53 and 2,162.94 is: 2,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.22 : 5,424.53 = 2,162.94 : x
  2. Step 2: Convert to fraction form
    3,931.22/5,424.53 = 2,162.94/x
  3. Step 3: Cross multiply
    3,931.22x = 5,424.53 × 2,162.94
  4. Step 4: Simplify right side
    3,931.22x = 11,732,932.92
  5. Step 5: Solve for x
    x = 11,732,932.92/3,931.22
  6. Step 6: Final answer
    x = 2,984.55

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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.