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Finding the Fourth Proportional to 837.52, 1,156.16 and 785.04

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Solution

The fourth proportional to 837.52, 1,156.16 and 785.04 is: 1,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.52 : 1,156.16 = 785.04 : x
  2. Step 2: Convert to fraction form
    837.52/1,156.16 = 785.04/x
  3. Step 3: Cross multiply
    837.52x = 1,156.16 × 785.04
  4. Step 4: Simplify right side
    837.52x = 907,631.85
  5. Step 5: Solve for x
    x = 907,631.85/837.52
  6. Step 6: Final answer
    x = 1,083.71

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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.