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Finding the Fourth Proportional to 938.08, 1,293.08 and 750.98

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Solution

The fourth proportional to 938.08, 1,293.08 and 750.98 is: 1,035.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.08 : 1,293.08 = 750.98 : x
  2. Step 2: Convert to fraction form
    938.08/1,293.08 = 750.98/x
  3. Step 3: Cross multiply
    938.08x = 1,293.08 × 750.98
  4. Step 4: Simplify right side
    938.08x = 971,077.22
  5. Step 5: Solve for x
    x = 971,077.22/938.08
  6. Step 6: Final answer
    x = 1,035.18

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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.