Home / 4,757.04-7,131.70-1,985.80

Finding the Fourth Proportional to 4,757.04, 7,131.70 and 1,985.80

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Solution

The fourth proportional to 4,757.04, 7,131.70 and 1,985.80 is: 2,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.04 : 7,131.70 = 1,985.80 : x
  2. Step 2: Convert to fraction form
    4,757.04/7,131.70 = 1,985.80/x
  3. Step 3: Cross multiply
    4,757.04x = 7,131.70 × 1,985.80
  4. Step 4: Simplify right side
    4,757.04x = 14,162,129.86
  5. Step 5: Solve for x
    x = 14,162,129.86/4,757.04
  6. Step 6: Final answer
    x = 2,977.09

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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.