Home / 2,688.05-4,032.59-932.99

Finding the Fourth Proportional to 2,688.05, 4,032.59 and 932.99

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Solution

The fourth proportional to 2,688.05, 4,032.59 and 932.99 is: 1,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.05 : 4,032.59 = 932.99 : x
  2. Step 2: Convert to fraction form
    2,688.05/4,032.59 = 932.99/x
  3. Step 3: Cross multiply
    2,688.05x = 4,032.59 × 932.99
  4. Step 4: Simplify right side
    2,688.05x = 3,762,341.32
  5. Step 5: Solve for x
    x = 3,762,341.32/2,688.05
  6. Step 6: Final answer
    x = 1,399.65

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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.