Home / 2,940.21-4,057.29-1,681.11

Finding the Fourth Proportional to 2,940.21, 4,057.29 and 1,681.11

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Solution

The fourth proportional to 2,940.21, 4,057.29 and 1,681.11 is: 2,319.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.21 : 4,057.29 = 1,681.11 : x
  2. Step 2: Convert to fraction form
    2,940.21/4,057.29 = 1,681.11/x
  3. Step 3: Cross multiply
    2,940.21x = 4,057.29 × 1,681.11
  4. Step 4: Simplify right side
    2,940.21x = 6,820,750.79
  5. Step 5: Solve for x
    x = 6,820,750.79/2,940.21
  6. Step 6: Final answer
    x = 2,319.82

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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.