Home / 3,132.21-4,687.95-2,089.74

Finding the Fourth Proportional to 3,132.21, 4,687.95 and 2,089.74

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Solution

The fourth proportional to 3,132.21, 4,687.95 and 2,089.74 is: 3,127.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.21 : 4,687.95 = 2,089.74 : x
  2. Step 2: Convert to fraction form
    3,132.21/4,687.95 = 2,089.74/x
  3. Step 3: Cross multiply
    3,132.21x = 4,687.95 × 2,089.74
  4. Step 4: Simplify right side
    3,132.21x = 9,796,596.63
  5. Step 5: Solve for x
    x = 9,796,596.63/3,132.21
  6. Step 6: Final answer
    x = 3,127.69

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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.