Home / 5,215.45-7,823.58-1,517.74

Finding the Fourth Proportional to 5,215.45, 7,823.58 and 1,517.74

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Solution

The fourth proportional to 5,215.45, 7,823.58 and 1,517.74 is: 2,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.45 : 7,823.58 = 1,517.74 : x
  2. Step 2: Convert to fraction form
    5,215.45/7,823.58 = 1,517.74/x
  3. Step 3: Cross multiply
    5,215.45x = 7,823.58 × 1,517.74
  4. Step 4: Simplify right side
    5,215.45x = 11,874,160.31
  5. Step 5: Solve for x
    x = 11,874,160.31/5,215.45
  6. Step 6: Final answer
    x = 2,276.73

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1.5x scale

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.