Home / 3,156.62-4,356.33-2,631.74

Finding the Fourth Proportional to 3,156.62, 4,356.33 and 2,631.74

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Solution

The fourth proportional to 3,156.62, 4,356.33 and 2,631.74 is: 3,631.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.62 : 4,356.33 = 2,631.74 : x
  2. Step 2: Convert to fraction form
    3,156.62/4,356.33 = 2,631.74/x
  3. Step 3: Cross multiply
    3,156.62x = 4,356.33 × 2,631.74
  4. Step 4: Simplify right side
    3,156.62x = 11,464,727.91
  5. Step 5: Solve for x
    x = 11,464,727.91/3,156.62
  6. Step 6: Final answer
    x = 3,631.96

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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.