Home / 2,790.43-4,176.43-1,539.11

Finding the Fourth Proportional to 2,790.43, 4,176.43 and 1,539.11

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Solution

The fourth proportional to 2,790.43, 4,176.43 and 1,539.11 is: 2,303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.43 : 4,176.43 = 1,539.11 : x
  2. Step 2: Convert to fraction form
    2,790.43/4,176.43 = 1,539.11/x
  3. Step 3: Cross multiply
    2,790.43x = 4,176.43 × 1,539.11
  4. Step 4: Simplify right side
    2,790.43x = 6,427,991.77
  5. Step 5: Solve for x
    x = 6,427,991.77/2,790.43
  6. Step 6: Final answer
    x = 2,303.59

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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.