Home / 1,116.14-1,674.19-346.64

Finding the Fourth Proportional to 1,116.14, 1,674.19 and 346.64

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Solution

The fourth proportional to 1,116.14, 1,674.19 and 346.64 is: 519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.14 : 1,674.19 = 346.64 : x
  2. Step 2: Convert to fraction form
    1,116.14/1,674.19 = 346.64/x
  3. Step 3: Cross multiply
    1,116.14x = 1,674.19 × 346.64
  4. Step 4: Simplify right side
    1,116.14x = 580,341.22
  5. Step 5: Solve for x
    x = 580,341.22/1,116.14
  6. Step 6: Final answer
    x = 519.95

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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.