Home / 4,292.80-6,439.92-2,101.24

Finding the Fourth Proportional to 4,292.80, 6,439.92 and 2,101.24

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Solution

The fourth proportional to 4,292.80, 6,439.92 and 2,101.24 is: 3,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.80 : 6,439.92 = 2,101.24 : x
  2. Step 2: Convert to fraction form
    4,292.80/6,439.92 = 2,101.24/x
  3. Step 3: Cross multiply
    4,292.80x = 6,439.92 × 2,101.24
  4. Step 4: Simplify right side
    4,292.80x = 13,531,817.50
  5. Step 5: Solve for x
    x = 13,531,817.50/4,292.80
  6. Step 6: Final answer
    x = 3,152.21

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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.