Home / 2,672.23-4,009.20-1,210.99

Finding the Fourth Proportional to 2,672.23, 4,009.20 and 1,210.99

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Solution

The fourth proportional to 2,672.23, 4,009.20 and 1,210.99 is: 1,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.23 : 4,009.20 = 1,210.99 : x
  2. Step 2: Convert to fraction form
    2,672.23/4,009.20 = 1,210.99/x
  3. Step 3: Cross multiply
    2,672.23x = 4,009.20 × 1,210.99
  4. Step 4: Simplify right side
    2,672.23x = 4,855,101.11
  5. Step 5: Solve for x
    x = 4,855,101.11/2,672.23
  6. Step 6: Final answer
    x = 1,816.87

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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.