Home / 2,931.87-4,397.79-1,083.06

Finding the Fourth Proportional to 2,931.87, 4,397.79 and 1,083.06

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Solution

The fourth proportional to 2,931.87, 4,397.79 and 1,083.06 is: 1,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.87 : 4,397.79 = 1,083.06 : x
  2. Step 2: Convert to fraction form
    2,931.87/4,397.79 = 1,083.06/x
  3. Step 3: Cross multiply
    2,931.87x = 4,397.79 × 1,083.06
  4. Step 4: Simplify right side
    2,931.87x = 4,763,070.44
  5. Step 5: Solve for x
    x = 4,763,070.44/2,931.87
  6. Step 6: Final answer
    x = 1,624.58

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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.