Home / 2,790.29-4,185.54-710.35

Finding the Fourth Proportional to 2,790.29, 4,185.54 and 710.35

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Solution

The fourth proportional to 2,790.29, 4,185.54 and 710.35 is: 1,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.29 : 4,185.54 = 710.35 : x
  2. Step 2: Convert to fraction form
    2,790.29/4,185.54 = 710.35/x
  3. Step 3: Cross multiply
    2,790.29x = 4,185.54 × 710.35
  4. Step 4: Simplify right side
    2,790.29x = 2,973,187.88
  5. Step 5: Solve for x
    x = 2,973,187.88/2,790.29
  6. Step 6: Final answer
    x = 1,065.55

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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.