Home / 2,477.40-3,720.73-2,181.02

Finding the Fourth Proportional to 2,477.40, 3,720.73 and 2,181.02

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Solution

The fourth proportional to 2,477.40, 3,720.73 and 2,181.02 is: 3,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.40 : 3,720.73 = 2,181.02 : x
  2. Step 2: Convert to fraction form
    2,477.40/3,720.73 = 2,181.02/x
  3. Step 3: Cross multiply
    2,477.40x = 3,720.73 × 2,181.02
  4. Step 4: Simplify right side
    2,477.40x = 8,114,986.54
  5. Step 5: Solve for x
    x = 8,114,986.54/2,477.40
  6. Step 6: Final answer
    x = 3,275.61

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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.