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Finding the Fourth Proportional to 692.83, 955.77 and 483.49

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Solution

The fourth proportional to 692.83, 955.77 and 483.49 is: 666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.83 : 955.77 = 483.49 : x
  2. Step 2: Convert to fraction form
    692.83/955.77 = 483.49/x
  3. Step 3: Cross multiply
    692.83x = 955.77 × 483.49
  4. Step 4: Simplify right side
    692.83x = 462,105.24
  5. Step 5: Solve for x
    x = 462,105.24/692.83
  6. Step 6: Final answer
    x = 666.98

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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.