Home / 2,940.50-4,058.30-1,681.76

Finding the Fourth Proportional to 2,940.50, 4,058.30 and 1,681.76

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Solution

The fourth proportional to 2,940.50, 4,058.30 and 1,681.76 is: 2,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.50 : 4,058.30 = 1,681.76 : x
  2. Step 2: Convert to fraction form
    2,940.50/4,058.30 = 1,681.76/x
  3. Step 3: Cross multiply
    2,940.50x = 4,058.30 × 1,681.76
  4. Step 4: Simplify right side
    2,940.50x = 6,825,100.96
  5. Step 5: Solve for x
    x = 6,825,100.96/2,940.50
  6. Step 6: Final answer
    x = 2,321.07

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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.