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Finding the Fourth Proportional to 934.94, 1,295.54 and 913.41

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Solution

The fourth proportional to 934.94, 1,295.54 and 913.41 is: 1,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.94 : 1,295.54 = 913.41 : x
  2. Step 2: Convert to fraction form
    934.94/1,295.54 = 913.41/x
  3. Step 3: Cross multiply
    934.94x = 1,295.54 × 913.41
  4. Step 4: Simplify right side
    934.94x = 1,183,365.76
  5. Step 5: Solve for x
    x = 1,183,365.76/934.94
  6. Step 6: Final answer
    x = 1,265.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.