Home / 2,009.90-3,013.23-914.78

Finding the Fourth Proportional to 2,009.90, 3,013.23 and 914.78

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Solution

The fourth proportional to 2,009.90, 3,013.23 and 914.78 is: 1,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.90 : 3,013.23 = 914.78 : x
  2. Step 2: Convert to fraction form
    2,009.90/3,013.23 = 914.78/x
  3. Step 3: Cross multiply
    2,009.90x = 3,013.23 × 914.78
  4. Step 4: Simplify right side
    2,009.90x = 2,756,442.54
  5. Step 5: Solve for x
    x = 2,756,442.54/2,009.90
  6. Step 6: Final answer
    x = 1,371.43

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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.