Home / 2,940.05-4,057.20-1,681.17

Finding the Fourth Proportional to 2,940.05, 4,057.20 and 1,681.17

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Solution

The fourth proportional to 2,940.05, 4,057.20 and 1,681.17 is: 2,319.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.05 : 4,057.20 = 1,681.17 : x
  2. Step 2: Convert to fraction form
    2,940.05/4,057.20 = 1,681.17/x
  3. Step 3: Cross multiply
    2,940.05x = 4,057.20 × 1,681.17
  4. Step 4: Simplify right side
    2,940.05x = 6,820,842.92
  5. Step 5: Solve for x
    x = 6,820,842.92/2,940.05
  6. Step 6: Final answer
    x = 2,319.98

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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.