Home / 1,293.70-1,941.34-513.56

Finding the Fourth Proportional to 1,293.70, 1,941.34 and 513.56

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Solution

The fourth proportional to 1,293.70, 1,941.34 and 513.56 is: 770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.70 : 1,941.34 = 513.56 : x
  2. Step 2: Convert to fraction form
    1,293.70/1,941.34 = 513.56/x
  3. Step 3: Cross multiply
    1,293.70x = 1,941.34 × 513.56
  4. Step 4: Simplify right side
    1,293.70x = 996,994.57
  5. Step 5: Solve for x
    x = 996,994.57/1,293.70
  6. Step 6: Final answer
    x = 770.65

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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.