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Finding the Fourth Proportional to 903.16, 1,245 and 792.46

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Solution

The fourth proportional to 903.16, 1,245 and 792.46 is: 1,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.16 : 1,245 = 792.46 : x
  2. Step 2: Convert to fraction form
    903.16/1,245 = 792.46/x
  3. Step 3: Cross multiply
    903.16x = 1,245 × 792.46
  4. Step 4: Simplify right side
    903.16x = 986,612.70
  5. Step 5: Solve for x
    x = 986,612.70/903.16
  6. Step 6: Final answer
    x = 1,092.40

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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.