Home / 2,909.91-4,015.68-1,583.61

Finding the Fourth Proportional to 2,909.91, 4,015.68 and 1,583.61

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Solution

The fourth proportional to 2,909.91, 4,015.68 and 1,583.61 is: 2,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.91 : 4,015.68 = 1,583.61 : x
  2. Step 2: Convert to fraction form
    2,909.91/4,015.68 = 1,583.61/x
  3. Step 3: Cross multiply
    2,909.91x = 4,015.68 × 1,583.61
  4. Step 4: Simplify right side
    2,909.91x = 6,359,271.00
  5. Step 5: Solve for x
    x = 6,359,271.00/2,909.91
  6. Step 6: Final answer
    x = 2,185.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.