Home / 2,730.46-3,766.35-1,985.26

Finding the Fourth Proportional to 2,730.46, 3,766.35 and 1,985.26

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Solution

The fourth proportional to 2,730.46, 3,766.35 and 1,985.26 is: 2,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.46 : 3,766.35 = 1,985.26 : x
  2. Step 2: Convert to fraction form
    2,730.46/3,766.35 = 1,985.26/x
  3. Step 3: Cross multiply
    2,730.46x = 3,766.35 × 1,985.26
  4. Step 4: Simplify right side
    2,730.46x = 7,477,184.00
  5. Step 5: Solve for x
    x = 7,477,184.00/2,730.46
  6. Step 6: Final answer
    x = 2,738.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.