Home / 3,009.90-4,513.14-2,391.78

Finding the Fourth Proportional to 3,009.90, 4,513.14 and 2,391.78

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Solution

The fourth proportional to 3,009.90, 4,513.14 and 2,391.78 is: 3,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.90 : 4,513.14 = 2,391.78 : x
  2. Step 2: Convert to fraction form
    3,009.90/4,513.14 = 2,391.78/x
  3. Step 3: Cross multiply
    3,009.90x = 4,513.14 × 2,391.78
  4. Step 4: Simplify right side
    3,009.90x = 10,794,437.99
  5. Step 5: Solve for x
    x = 10,794,437.99/3,009.90
  6. Step 6: Final answer
    x = 3,586.31

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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.