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Finding the Fourth Proportional to 3,434.94, 5,152.75 and 969.79

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Solution

The fourth proportional to 3,434.94, 5,152.75 and 969.79 is: 1,454.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.94 : 5,152.75 = 969.79 : x
  2. Step 2: Convert to fraction form
    3,434.94/5,152.75 = 969.79/x
  3. Step 3: Cross multiply
    3,434.94x = 5,152.75 × 969.79
  4. Step 4: Simplify right side
    3,434.94x = 4,997,062.08
  5. Step 5: Solve for x
    x = 4,997,062.08/3,434.94
  6. Step 6: Final answer
    x = 1,454.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.