Home / 2,790.78-4,187.61-1,492.14

Finding the Fourth Proportional to 2,790.78, 4,187.61 and 1,492.14

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Solution

The fourth proportional to 2,790.78, 4,187.61 and 1,492.14 is: 2,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.78 : 4,187.61 = 1,492.14 : x
  2. Step 2: Convert to fraction form
    2,790.78/4,187.61 = 1,492.14/x
  3. Step 3: Cross multiply
    2,790.78x = 4,187.61 × 1,492.14
  4. Step 4: Simplify right side
    2,790.78x = 6,248,500.39
  5. Step 5: Solve for x
    x = 6,248,500.39/2,790.78
  6. Step 6: Final answer
    x = 2,238.98

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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.