Home / 2,790.07-4,184.19-1,145.88

Finding the Fourth Proportional to 2,790.07, 4,184.19 and 1,145.88

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Solution

The fourth proportional to 2,790.07, 4,184.19 and 1,145.88 is: 1,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.07 : 4,184.19 = 1,145.88 : x
  2. Step 2: Convert to fraction form
    2,790.07/4,184.19 = 1,145.88/x
  3. Step 3: Cross multiply
    2,790.07x = 4,184.19 × 1,145.88
  4. Step 4: Simplify right side
    2,790.07x = 4,794,579.64
  5. Step 5: Solve for x
    x = 4,794,579.64/2,790.07
  6. Step 6: Final answer
    x = 1,718.45

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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.