Home / 2,009.20-3,013.80-1,353.10

Finding the Fourth Proportional to 2,009.20, 3,013.80 and 1,353.10

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Solution

The fourth proportional to 2,009.20, 3,013.80 and 1,353.10 is: 2,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.20 : 3,013.80 = 1,353.10 : x
  2. Step 2: Convert to fraction form
    2,009.20/3,013.80 = 1,353.10/x
  3. Step 3: Cross multiply
    2,009.20x = 3,013.80 × 1,353.10
  4. Step 4: Simplify right side
    2,009.20x = 4,077,972.78
  5. Step 5: Solve for x
    x = 4,077,972.78/2,009.20
  6. Step 6: Final answer
    x = 2,029.65

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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.