Home / 5,215.40-7,824.26-1,517.93

Finding the Fourth Proportional to 5,215.40, 7,824.26 and 1,517.93

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Solution

The fourth proportional to 5,215.40, 7,824.26 and 1,517.93 is: 2,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.40 : 7,824.26 = 1,517.93 : x
  2. Step 2: Convert to fraction form
    5,215.40/7,824.26 = 1,517.93/x
  3. Step 3: Cross multiply
    5,215.40x = 7,824.26 × 1,517.93
  4. Step 4: Simplify right side
    5,215.40x = 11,876,643.66
  5. Step 5: Solve for x
    x = 11,876,643.66/5,215.40
  6. Step 6: Final answer
    x = 2,277.22

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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.