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Finding the Fourth Proportional to 3,339.53, 5,010.01 and 999.72

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Solution

The fourth proportional to 3,339.53, 5,010.01 and 999.72 is: 1,499.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.53 : 5,010.01 = 999.72 : x
  2. Step 2: Convert to fraction form
    3,339.53/5,010.01 = 999.72/x
  3. Step 3: Cross multiply
    3,339.53x = 5,010.01 × 999.72
  4. Step 4: Simplify right side
    3,339.53x = 5,008,582.15
  5. Step 5: Solve for x
    x = 5,008,582.15/3,339.53
  6. Step 6: Final answer
    x = 1,499.79

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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.