Home / 1,346.85-2,011.20-1,269.96

Finding the Fourth Proportional to 1,346.85, 2,011.20 and 1,269.96

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Solution

The fourth proportional to 1,346.85, 2,011.20 and 1,269.96 is: 1,896.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.85 : 2,011.20 = 1,269.96 : x
  2. Step 2: Convert to fraction form
    1,346.85/2,011.20 = 1,269.96/x
  3. Step 3: Cross multiply
    1,346.85x = 2,011.20 × 1,269.96
  4. Step 4: Simplify right side
    1,346.85x = 2,554,143.55
  5. Step 5: Solve for x
    x = 2,554,143.55/1,346.85
  6. Step 6: Final answer
    x = 1,896.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.