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Finding the Fourth Proportional to 1,491.66, 2,059.47 and 932.94

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Solution

The fourth proportional to 1,491.66, 2,059.47 and 932.94 is: 1,288.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.66 : 2,059.47 = 932.94 : x
  2. Step 2: Convert to fraction form
    1,491.66/2,059.47 = 932.94/x
  3. Step 3: Cross multiply
    1,491.66x = 2,059.47 × 932.94
  4. Step 4: Simplify right side
    1,491.66x = 1,921,361.94
  5. Step 5: Solve for x
    x = 1,921,361.94/1,491.66
  6. Step 6: Final answer
    x = 1,288.07

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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.