Home / 3,231.63-4,462.77-2,785.35

Finding the Fourth Proportional to 3,231.63, 4,462.77 and 2,785.35

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Solution

The fourth proportional to 3,231.63, 4,462.77 and 2,785.35 is: 3,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.63 : 4,462.77 = 2,785.35 : x
  2. Step 2: Convert to fraction form
    3,231.63/4,462.77 = 2,785.35/x
  3. Step 3: Cross multiply
    3,231.63x = 4,462.77 × 2,785.35
  4. Step 4: Simplify right side
    3,231.63x = 12,430,376.42
  5. Step 5: Solve for x
    x = 12,430,376.42/3,231.63
  6. Step 6: Final answer
    x = 3,846.47

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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.