Home / 3,631.16-5,446.67-1,780.31

Finding the Fourth Proportional to 3,631.16, 5,446.67 and 1,780.31

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Solution

The fourth proportional to 3,631.16, 5,446.67 and 1,780.31 is: 2,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.16 : 5,446.67 = 1,780.31 : x
  2. Step 2: Convert to fraction form
    3,631.16/5,446.67 = 1,780.31/x
  3. Step 3: Cross multiply
    3,631.16x = 5,446.67 × 1,780.31
  4. Step 4: Simplify right side
    3,631.16x = 9,696,724.93
  5. Step 5: Solve for x
    x = 9,696,724.93/3,631.16
  6. Step 6: Final answer
    x = 2,670.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.