Home / 2,790.48-4,186.68-1,252.08

Finding the Fourth Proportional to 2,790.48, 4,186.68 and 1,252.08

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Solution

The fourth proportional to 2,790.48, 4,186.68 and 1,252.08 is: 1,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.48 : 4,186.68 = 1,252.08 : x
  2. Step 2: Convert to fraction form
    2,790.48/4,186.68 = 1,252.08/x
  3. Step 3: Cross multiply
    2,790.48x = 4,186.68 × 1,252.08
  4. Step 4: Simplify right side
    2,790.48x = 5,242,058.29
  5. Step 5: Solve for x
    x = 5,242,058.29/2,790.48
  6. Step 6: Final answer
    x = 1,878.55

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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.