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Finding the Fourth Proportional to 1,955.15, 2,932.03 and 722.23

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Solution

The fourth proportional to 1,955.15, 2,932.03 and 722.23 is: 1,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.15 : 2,932.03 = 722.23 : x
  2. Step 2: Convert to fraction form
    1,955.15/2,932.03 = 722.23/x
  3. Step 3: Cross multiply
    1,955.15x = 2,932.03 × 722.23
  4. Step 4: Simplify right side
    1,955.15x = 2,117,600.03
  5. Step 5: Solve for x
    x = 2,117,600.03/1,955.15
  6. Step 6: Final answer
    x = 1,083.09

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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.