Home / 4,429.80-6,644.94-1,657.20

Finding the Fourth Proportional to 4,429.80, 6,644.94 and 1,657.20

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Solution

The fourth proportional to 4,429.80, 6,644.94 and 1,657.20 is: 2,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.80 : 6,644.94 = 1,657.20 : x
  2. Step 2: Convert to fraction form
    4,429.80/6,644.94 = 1,657.20/x
  3. Step 3: Cross multiply
    4,429.80x = 6,644.94 × 1,657.20
  4. Step 4: Simplify right side
    4,429.80x = 11,011,994.57
  5. Step 5: Solve for x
    x = 11,011,994.57/4,429.80
  6. Step 6: Final answer
    x = 2,485.89

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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.