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Finding the Fourth Proportional to 943.22, 1,302.24 and 607.27

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Solution

The fourth proportional to 943.22, 1,302.24 and 607.27 is: 838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.22 : 1,302.24 = 607.27 : x
  2. Step 2: Convert to fraction form
    943.22/1,302.24 = 607.27/x
  3. Step 3: Cross multiply
    943.22x = 1,302.24 × 607.27
  4. Step 4: Simplify right side
    943.22x = 790,811.28
  5. Step 5: Solve for x
    x = 790,811.28/943.22
  6. Step 6: Final answer
    x = 838.42

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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.