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Finding the Fourth Proportional to 1,202.01, 1,658.66 and 670.79

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Solution

The fourth proportional to 1,202.01, 1,658.66 and 670.79 is: 925.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.01 : 1,658.66 = 670.79 : x
  2. Step 2: Convert to fraction form
    1,202.01/1,658.66 = 670.79/x
  3. Step 3: Cross multiply
    1,202.01x = 1,658.66 × 670.79
  4. Step 4: Simplify right side
    1,202.01x = 1,112,613.33
  5. Step 5: Solve for x
    x = 1,112,613.33/1,202.01
  6. Step 6: Final answer
    x = 925.63

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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.