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Finding the Fourth Proportional to 3,340.46, 5,010.74 and 999.92

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Solution

The fourth proportional to 3,340.46, 5,010.74 and 999.92 is: 1,499.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.46 : 5,010.74 = 999.92 : x
  2. Step 2: Convert to fraction form
    3,340.46/5,010.74 = 999.92/x
  3. Step 3: Cross multiply
    3,340.46x = 5,010.74 × 999.92
  4. Step 4: Simplify right side
    3,340.46x = 5,010,314.09
  5. Step 5: Solve for x
    x = 5,010,314.09/3,340.46
  6. Step 6: Final answer
    x = 1,499.89

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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.