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Finding the Fourth Proportional to 934.69, 1,289.96 and 701.41

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Solution

The fourth proportional to 934.69, 1,289.96 and 701.41 is: 968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.69 : 1,289.96 = 701.41 : x
  2. Step 2: Convert to fraction form
    934.69/1,289.96 = 701.41/x
  3. Step 3: Cross multiply
    934.69x = 1,289.96 × 701.41
  4. Step 4: Simplify right side
    934.69x = 904,790.84
  5. Step 5: Solve for x
    x = 904,790.84/934.69
  6. Step 6: Final answer
    x = 968.01

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Double scale
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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.