Home / 2,013.30-3,015.90-1,397.70

Finding the Fourth Proportional to 2,013.30, 3,015.90 and 1,397.70

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Solution

The fourth proportional to 2,013.30, 3,015.90 and 1,397.70 is: 2,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.30 : 3,015.90 = 1,397.70 : x
  2. Step 2: Convert to fraction form
    2,013.30/3,015.90 = 1,397.70/x
  3. Step 3: Cross multiply
    2,013.30x = 3,015.90 × 1,397.70
  4. Step 4: Simplify right side
    2,013.30x = 4,215,323.43
  5. Step 5: Solve for x
    x = 4,215,323.43/2,013.30
  6. Step 6: Final answer
    x = 2,093.74

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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.