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Finding the Fourth Proportional to 1,955.26, 2,933.32 and 656.70

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Solution

The fourth proportional to 1,955.26, 2,933.32 and 656.70 is: 985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.26 : 2,933.32 = 656.70 : x
  2. Step 2: Convert to fraction form
    1,955.26/2,933.32 = 656.70/x
  3. Step 3: Cross multiply
    1,955.26x = 2,933.32 × 656.70
  4. Step 4: Simplify right side
    1,955.26x = 1,926,311.24
  5. Step 5: Solve for x
    x = 1,926,311.24/1,955.26
  6. Step 6: Final answer
    x = 985.19

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1.5x scale

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.