Home / 1,295.68-1,942.46-515.35

Finding the Fourth Proportional to 1,295.68, 1,942.46 and 515.35

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Solution

The fourth proportional to 1,295.68, 1,942.46 and 515.35 is: 772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.68 : 1,942.46 = 515.35 : x
  2. Step 2: Convert to fraction form
    1,295.68/1,942.46 = 515.35/x
  3. Step 3: Cross multiply
    1,295.68x = 1,942.46 × 515.35
  4. Step 4: Simplify right side
    1,295.68x = 1,001,039.33
  5. Step 5: Solve for x
    x = 1,001,039.33/1,295.68
  6. Step 6: Final answer
    x = 772.60

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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.