Home / 2,688.30-4,032.96-933.24

Finding the Fourth Proportional to 2,688.30, 4,032.96 and 933.24

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Solution

The fourth proportional to 2,688.30, 4,032.96 and 933.24 is: 1,400.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.30 : 4,032.96 = 933.24 : x
  2. Step 2: Convert to fraction form
    2,688.30/4,032.96 = 933.24/x
  3. Step 3: Cross multiply
    2,688.30x = 4,032.96 × 933.24
  4. Step 4: Simplify right side
    2,688.30x = 3,763,699.43
  5. Step 5: Solve for x
    x = 3,763,699.43/2,688.30
  6. Step 6: Final answer
    x = 1,400.03

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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.