Home / 1,776.12-2,451.34-1,113.54

Finding the Fourth Proportional to 1,776.12, 2,451.34 and 1,113.54

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Solution

The fourth proportional to 1,776.12, 2,451.34 and 1,113.54 is: 1,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.12 : 2,451.34 = 1,113.54 : x
  2. Step 2: Convert to fraction form
    1,776.12/2,451.34 = 1,113.54/x
  3. Step 3: Cross multiply
    1,776.12x = 2,451.34 × 1,113.54
  4. Step 4: Simplify right side
    1,776.12x = 2,729,665.14
  5. Step 5: Solve for x
    x = 2,729,665.14/1,776.12
  6. Step 6: Final answer
    x = 1,536.87

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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.