Home / 2,688.70-4,033.05-1,764.04

Finding the Fourth Proportional to 2,688.70, 4,033.05 and 1,764.04

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Solution

The fourth proportional to 2,688.70, 4,033.05 and 1,764.04 is: 2,646.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.70 : 4,033.05 = 1,764.04 : x
  2. Step 2: Convert to fraction form
    2,688.70/4,033.05 = 1,764.04/x
  3. Step 3: Cross multiply
    2,688.70x = 4,033.05 × 1,764.04
  4. Step 4: Simplify right side
    2,688.70x = 7,114,461.52
  5. Step 5: Solve for x
    x = 7,114,461.52/2,688.70
  6. Step 6: Final answer
    x = 2,646.06

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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.