Home / 3,384.90-4,670.60-2,190.15

Finding the Fourth Proportional to 3,384.90, 4,670.60 and 2,190.15

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Solution

The fourth proportional to 3,384.90, 4,670.60 and 2,190.15 is: 3,022.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.90 : 4,670.60 = 2,190.15 : x
  2. Step 2: Convert to fraction form
    3,384.90/4,670.60 = 2,190.15/x
  3. Step 3: Cross multiply
    3,384.90x = 4,670.60 × 2,190.15
  4. Step 4: Simplify right side
    3,384.90x = 10,229,303.64
  5. Step 5: Solve for x
    x = 10,229,303.64/3,384.90
  6. Step 6: Final answer
    x = 3,022.04

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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.