Home / 4,891.17-7,336.62-1,428.42

Finding the Fourth Proportional to 4,891.17, 7,336.62 and 1,428.42

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Solution

The fourth proportional to 4,891.17, 7,336.62 and 1,428.42 is: 2,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.17 : 7,336.62 = 1,428.42 : x
  2. Step 2: Convert to fraction form
    4,891.17/7,336.62 = 1,428.42/x
  3. Step 3: Cross multiply
    4,891.17x = 7,336.62 × 1,428.42
  4. Step 4: Simplify right side
    4,891.17x = 10,479,774.74
  5. Step 5: Solve for x
    x = 10,479,774.74/4,891.17
  6. Step 6: Final answer
    x = 2,142.59

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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.