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Finding the Fourth Proportional to 3,339.42, 5,009.25 and 999.45

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Solution

The fourth proportional to 3,339.42, 5,009.25 and 999.45 is: 1,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.42 : 5,009.25 = 999.45 : x
  2. Step 2: Convert to fraction form
    3,339.42/5,009.25 = 999.45/x
  3. Step 3: Cross multiply
    3,339.42x = 5,009.25 × 999.45
  4. Step 4: Simplify right side
    3,339.42x = 5,006,494.91
  5. Step 5: Solve for x
    x = 5,006,494.91/3,339.42
  6. Step 6: Final answer
    x = 1,499.21

Related Problems

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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.