Home / 1,066.06-1,471.77-692.85

Finding the Fourth Proportional to 1,066.06, 1,471.77 and 692.85

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Solution

The fourth proportional to 1,066.06, 1,471.77 and 692.85 is: 956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.06 : 1,471.77 = 692.85 : x
  2. Step 2: Convert to fraction form
    1,066.06/1,471.77 = 692.85/x
  3. Step 3: Cross multiply
    1,066.06x = 1,471.77 × 692.85
  4. Step 4: Simplify right side
    1,066.06x = 1,019,721.36
  5. Step 5: Solve for x
    x = 1,019,721.36/1,066.06
  6. Step 6: Final answer
    x = 956.53

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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.