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Finding the Fourth Proportional to 1,414.13, 1,950.23 and 916.27

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Solution

The fourth proportional to 1,414.13, 1,950.23 and 916.27 is: 1,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.13 : 1,950.23 = 916.27 : x
  2. Step 2: Convert to fraction form
    1,414.13/1,950.23 = 916.27/x
  3. Step 3: Cross multiply
    1,414.13x = 1,950.23 × 916.27
  4. Step 4: Simplify right side
    1,414.13x = 1,786,934.66
  5. Step 5: Solve for x
    x = 1,786,934.66/1,414.13
  6. Step 6: Final answer
    x = 1,263.63

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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.