Home / 3,095.30-4,642-1,120.69

Finding the Fourth Proportional to 3,095.30, 4,642 and 1,120.69

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Solution

The fourth proportional to 3,095.30, 4,642 and 1,120.69 is: 1,680.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,095.30 : 4,642 = 1,120.69 : x
  2. Step 2: Convert to fraction form
    3,095.30/4,642 = 1,120.69/x
  3. Step 3: Cross multiply
    3,095.30x = 4,642 × 1,120.69
  4. Step 4: Simplify right side
    3,095.30x = 5,202,242.98
  5. Step 5: Solve for x
    x = 5,202,242.98/3,095.30
  6. Step 6: Final answer
    x = 1,680.69

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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.