Home / 3,009.90-4,514.98-929.86

Finding the Fourth Proportional to 3,009.90, 4,514.98 and 929.86

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Solution

The fourth proportional to 3,009.90, 4,514.98 and 929.86 is: 1,394.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.90 : 4,514.98 = 929.86 : x
  2. Step 2: Convert to fraction form
    3,009.90/4,514.98 = 929.86/x
  3. Step 3: Cross multiply
    3,009.90x = 4,514.98 × 929.86
  4. Step 4: Simplify right side
    3,009.90x = 4,198,285.69
  5. Step 5: Solve for x
    x = 4,198,285.69/3,009.90
  6. Step 6: Final answer
    x = 1,394.83

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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.