Home / 5,324.84-7,987.26-1,428.95

Finding the Fourth Proportional to 5,324.84, 7,987.26 and 1,428.95

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Solution

The fourth proportional to 5,324.84, 7,987.26 and 1,428.95 is: 2,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.84 : 7,987.26 = 1,428.95 : x
  2. Step 2: Convert to fraction form
    5,324.84/7,987.26 = 1,428.95/x
  3. Step 3: Cross multiply
    5,324.84x = 7,987.26 × 1,428.95
  4. Step 4: Simplify right side
    5,324.84x = 11,413,355.24
  5. Step 5: Solve for x
    x = 11,413,355.24/5,324.84
  6. Step 6: Final answer
    x = 2,143.42

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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.