Home / 5,631.79-8,449.70-2,511.52

Finding the Fourth Proportional to 5,631.79, 8,449.70 and 2,511.52

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Solution

The fourth proportional to 5,631.79, 8,449.70 and 2,511.52 is: 3,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.79 : 8,449.70 = 2,511.52 : x
  2. Step 2: Convert to fraction form
    5,631.79/8,449.70 = 2,511.52/x
  3. Step 3: Cross multiply
    5,631.79x = 8,449.70 × 2,511.52
  4. Step 4: Simplify right side
    5,631.79x = 21,221,590.54
  5. Step 5: Solve for x
    x = 21,221,590.54/5,631.79
  6. Step 6: Final answer
    x = 3,768.18

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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.