Home / 2,688.84-3,705.48-1,941.44

Finding the Fourth Proportional to 2,688.84, 3,705.48 and 1,941.44

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Solution

The fourth proportional to 2,688.84, 3,705.48 and 1,941.44 is: 2,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.84 : 3,705.48 = 1,941.44 : x
  2. Step 2: Convert to fraction form
    2,688.84/3,705.48 = 1,941.44/x
  3. Step 3: Cross multiply
    2,688.84x = 3,705.48 × 1,941.44
  4. Step 4: Simplify right side
    2,688.84x = 7,193,948.56
  5. Step 5: Solve for x
    x = 7,193,948.56/2,688.84
  6. Step 6: Final answer
    x = 2,675.48

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1.5x scale

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.