Home / 2,803.10-4,207.39-2,138.77

Finding the Fourth Proportional to 2,803.10, 4,207.39 and 2,138.77

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Solution

The fourth proportional to 2,803.10, 4,207.39 and 2,138.77 is: 3,210.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.10 : 4,207.39 = 2,138.77 : x
  2. Step 2: Convert to fraction form
    2,803.10/4,207.39 = 2,138.77/x
  3. Step 3: Cross multiply
    2,803.10x = 4,207.39 × 2,138.77
  4. Step 4: Simplify right side
    2,803.10x = 8,998,623.64
  5. Step 5: Solve for x
    x = 8,998,623.64/2,803.10
  6. Step 6: Final answer
    x = 3,210.24

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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.