Home / 1,747.37-2,411.39-961.40

Finding the Fourth Proportional to 1,747.37, 2,411.39 and 961.40

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Solution

The fourth proportional to 1,747.37, 2,411.39 and 961.40 is: 1,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.37 : 2,411.39 = 961.40 : x
  2. Step 2: Convert to fraction form
    1,747.37/2,411.39 = 961.40/x
  3. Step 3: Cross multiply
    1,747.37x = 2,411.39 × 961.40
  4. Step 4: Simplify right side
    1,747.37x = 2,318,310.35
  5. Step 5: Solve for x
    x = 2,318,310.35/1,747.37
  6. Step 6: Final answer
    x = 1,326.74

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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.