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Finding the Fourth Proportional to 3,005.54, 4,508.64 and 925.46

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Solution

The fourth proportional to 3,005.54, 4,508.64 and 925.46 is: 1,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.54 : 4,508.64 = 925.46 : x
  2. Step 2: Convert to fraction form
    3,005.54/4,508.64 = 925.46/x
  3. Step 3: Cross multiply
    3,005.54x = 4,508.64 × 925.46
  4. Step 4: Simplify right side
    3,005.54x = 4,172,543.43
  5. Step 5: Solve for x
    x = 4,172,543.43/3,005.54
  6. Step 6: Final answer
    x = 1,388.29

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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.