Home / 2,808.53-4,210.19-1,247.72

Finding the Fourth Proportional to 2,808.53, 4,210.19 and 1,247.72

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Solution

The fourth proportional to 2,808.53, 4,210.19 and 1,247.72 is: 1,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.53 : 4,210.19 = 1,247.72 : x
  2. Step 2: Convert to fraction form
    2,808.53/4,210.19 = 1,247.72/x
  3. Step 3: Cross multiply
    2,808.53x = 4,210.19 × 1,247.72
  4. Step 4: Simplify right side
    2,808.53x = 5,253,110.98
  5. Step 5: Solve for x
    x = 5,253,110.98/2,808.53
  6. Step 6: Final answer
    x = 1,870.41

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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.