Home / 1,346.30-2,020.14-696.90

Finding the Fourth Proportional to 1,346.30, 2,020.14 and 696.90

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Solution

The fourth proportional to 1,346.30, 2,020.14 and 696.90 is: 1,045.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.30 : 2,020.14 = 696.90 : x
  2. Step 2: Convert to fraction form
    1,346.30/2,020.14 = 696.90/x
  3. Step 3: Cross multiply
    1,346.30x = 2,020.14 × 696.90
  4. Step 4: Simplify right side
    1,346.30x = 1,407,835.57
  5. Step 5: Solve for x
    x = 1,407,835.57/1,346.30
  6. Step 6: Final answer
    x = 1,045.71

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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.