Home / 2,931.09-4,395.22-1,083.08

Finding the Fourth Proportional to 2,931.09, 4,395.22 and 1,083.08

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Solution

The fourth proportional to 2,931.09, 4,395.22 and 1,083.08 is: 1,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.09 : 4,395.22 = 1,083.08 : x
  2. Step 2: Convert to fraction form
    2,931.09/4,395.22 = 1,083.08/x
  3. Step 3: Cross multiply
    2,931.09x = 4,395.22 × 1,083.08
  4. Step 4: Simplify right side
    2,931.09x = 4,760,374.88
  5. Step 5: Solve for x
    x = 4,760,374.88/2,931.09
  6. Step 6: Final answer
    x = 1,624.10

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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.