Home / 2,199.96-3,035.87-1,315.30

Finding the Fourth Proportional to 2,199.96, 3,035.87 and 1,315.30

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Solution

The fourth proportional to 2,199.96, 3,035.87 and 1,315.30 is: 1,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.96 : 3,035.87 = 1,315.30 : x
  2. Step 2: Convert to fraction form
    2,199.96/3,035.87 = 1,315.30/x
  3. Step 3: Cross multiply
    2,199.96x = 3,035.87 × 1,315.30
  4. Step 4: Simplify right side
    2,199.96x = 3,993,073.23
  5. Step 5: Solve for x
    x = 3,993,073.23/2,199.96
  6. Step 6: Final answer
    x = 1,815.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.