Home / 3,101.56-4,643.10-2,990.85

Finding the Fourth Proportional to 3,101.56, 4,643.10 and 2,990.85

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Solution

The fourth proportional to 3,101.56, 4,643.10 and 2,990.85 is: 4,477.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.56 : 4,643.10 = 2,990.85 : x
  2. Step 2: Convert to fraction form
    3,101.56/4,643.10 = 2,990.85/x
  3. Step 3: Cross multiply
    3,101.56x = 4,643.10 × 2,990.85
  4. Step 4: Simplify right side
    3,101.56x = 13,886,815.64
  5. Step 5: Solve for x
    x = 13,886,815.64/3,101.56
  6. Step 6: Final answer
    x = 4,477.36

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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.