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Finding the Fourth Proportional to 3,006.21, 4,507.70 and 925.59

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Solution

The fourth proportional to 3,006.21, 4,507.70 and 925.59 is: 1,387.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.21 : 4,507.70 = 925.59 : x
  2. Step 2: Convert to fraction form
    3,006.21/4,507.70 = 925.59/x
  3. Step 3: Cross multiply
    3,006.21x = 4,507.70 × 925.59
  4. Step 4: Simplify right side
    3,006.21x = 4,172,277.42
  5. Step 5: Solve for x
    x = 4,172,277.42/3,006.21
  6. Step 6: Final answer
    x = 1,387.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.