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Finding the Fourth Proportional to 805.37, 1,107.14 and 692.93

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Solution

The fourth proportional to 805.37, 1,107.14 and 692.93 is: 952.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    805.37 : 1,107.14 = 692.93 : x
  2. Step 2: Convert to fraction form
    805.37/1,107.14 = 692.93/x
  3. Step 3: Cross multiply
    805.37x = 1,107.14 × 692.93
  4. Step 4: Simplify right side
    805.37x = 767,170.52
  5. Step 5: Solve for x
    x = 767,170.52/805.37
  6. Step 6: Final answer
    x = 952.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.