Home / 5,239.23-7,228.08-2,999.90

Finding the Fourth Proportional to 5,239.23, 7,228.08 and 2,999.90

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Solution

The fourth proportional to 5,239.23, 7,228.08 and 2,999.90 is: 4,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.23 : 7,228.08 = 2,999.90 : x
  2. Step 2: Convert to fraction form
    5,239.23/7,228.08 = 2,999.90/x
  3. Step 3: Cross multiply
    5,239.23x = 7,228.08 × 2,999.90
  4. Step 4: Simplify right side
    5,239.23x = 21,683,517.19
  5. Step 5: Solve for x
    x = 21,683,517.19/5,239.23
  6. Step 6: Final answer
    x = 4,138.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.