Home / 2,609.78-3,603.20-2,011.14

Finding the Fourth Proportional to 2,609.78, 3,603.20 and 2,011.14

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Solution

The fourth proportional to 2,609.78, 3,603.20 and 2,011.14 is: 2,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.78 : 3,603.20 = 2,011.14 : x
  2. Step 2: Convert to fraction form
    2,609.78/3,603.20 = 2,011.14/x
  3. Step 3: Cross multiply
    2,609.78x = 3,603.20 × 2,011.14
  4. Step 4: Simplify right side
    2,609.78x = 7,246,539.65
  5. Step 5: Solve for x
    x = 7,246,539.65/2,609.78
  6. Step 6: Final answer
    x = 2,776.69

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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.