Home / 2,478.36-3,718.11-2,040.30

Finding the Fourth Proportional to 2,478.36, 3,718.11 and 2,040.30

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Solution

The fourth proportional to 2,478.36, 3,718.11 and 2,040.30 is: 3,060.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.36 : 3,718.11 = 2,040.30 : x
  2. Step 2: Convert to fraction form
    2,478.36/3,718.11 = 2,040.30/x
  3. Step 3: Cross multiply
    2,478.36x = 3,718.11 × 2,040.30
  4. Step 4: Simplify right side
    2,478.36x = 7,586,059.83
  5. Step 5: Solve for x
    x = 7,586,059.83/2,478.36
  6. Step 6: Final answer
    x = 3,060.92

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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.