Home / 5,218.97-7,829.18-1,521.47

Finding the Fourth Proportional to 5,218.97, 7,829.18 and 1,521.47

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Solution

The fourth proportional to 5,218.97, 7,829.18 and 1,521.47 is: 2,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.97 : 7,829.18 = 1,521.47 : x
  2. Step 2: Convert to fraction form
    5,218.97/7,829.18 = 1,521.47/x
  3. Step 3: Cross multiply
    5,218.97x = 7,829.18 × 1,521.47
  4. Step 4: Simplify right side
    5,218.97x = 11,911,862.49
  5. Step 5: Solve for x
    x = 11,911,862.49/5,218.97
  6. Step 6: Final answer
    x = 2,282.42

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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.