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Finding the Fourth Proportional to 1,491.99, 2,059.34 and 932.12

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Solution

The fourth proportional to 1,491.99, 2,059.34 and 932.12 is: 1,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.99 : 2,059.34 = 932.12 : x
  2. Step 2: Convert to fraction form
    1,491.99/2,059.34 = 932.12/x
  3. Step 3: Cross multiply
    1,491.99x = 2,059.34 × 932.12
  4. Step 4: Simplify right side
    1,491.99x = 1,919,561.59
  5. Step 5: Solve for x
    x = 1,919,561.59/1,491.99
  6. Step 6: Final answer
    x = 1,286.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.