Home / 4,089.10-6,129.96-1,491.43

Finding the Fourth Proportional to 4,089.10, 6,129.96 and 1,491.43

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Solution

The fourth proportional to 4,089.10, 6,129.96 and 1,491.43 is: 2,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.10 : 6,129.96 = 1,491.43 : x
  2. Step 2: Convert to fraction form
    4,089.10/6,129.96 = 1,491.43/x
  3. Step 3: Cross multiply
    4,089.10x = 6,129.96 × 1,491.43
  4. Step 4: Simplify right side
    4,089.10x = 9,142,406.24
  5. Step 5: Solve for x
    x = 9,142,406.24/4,089.10
  6. Step 6: Final answer
    x = 2,235.80

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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.