Home / 2,811.06-4,210.25-1,351.31

Finding the Fourth Proportional to 2,811.06, 4,210.25 and 1,351.31

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Solution

The fourth proportional to 2,811.06, 4,210.25 and 1,351.31 is: 2,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.06 : 4,210.25 = 1,351.31 : x
  2. Step 2: Convert to fraction form
    2,811.06/4,210.25 = 1,351.31/x
  3. Step 3: Cross multiply
    2,811.06x = 4,210.25 × 1,351.31
  4. Step 4: Simplify right side
    2,811.06x = 5,689,325.12
  5. Step 5: Solve for x
    x = 5,689,325.12/2,811.06
  6. Step 6: Final answer
    x = 2,023.91

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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.