Home / 2,688.36-4,032.48-1,764.30

Finding the Fourth Proportional to 2,688.36, 4,032.48 and 1,764.30

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Solution

The fourth proportional to 2,688.36, 4,032.48 and 1,764.30 is: 2,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.36 : 4,032.48 = 1,764.30 : x
  2. Step 2: Convert to fraction form
    2,688.36/4,032.48 = 1,764.30/x
  3. Step 3: Cross multiply
    2,688.36x = 4,032.48 × 1,764.30
  4. Step 4: Simplify right side
    2,688.36x = 7,114,504.46
  5. Step 5: Solve for x
    x = 7,114,504.46/2,688.36
  6. Step 6: Final answer
    x = 2,646.41

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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.