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Finding the Fourth Proportional to 2,999.07, 4,498.83 and 1,439.42

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Solution

The fourth proportional to 2,999.07, 4,498.83 and 1,439.42 is: 2,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.07 : 4,498.83 = 1,439.42 : x
  2. Step 2: Convert to fraction form
    2,999.07/4,498.83 = 1,439.42/x
  3. Step 3: Cross multiply
    2,999.07x = 4,498.83 × 1,439.42
  4. Step 4: Simplify right side
    2,999.07x = 6,475,683.38
  5. Step 5: Solve for x
    x = 6,475,683.38/2,999.07
  6. Step 6: Final answer
    x = 2,159.23

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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.