Home / 2,880.86-4,320.38-932.66

Finding the Fourth Proportional to 2,880.86, 4,320.38 and 932.66

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Solution

The fourth proportional to 2,880.86, 4,320.38 and 932.66 is: 1,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.86 : 4,320.38 = 932.66 : x
  2. Step 2: Convert to fraction form
    2,880.86/4,320.38 = 932.66/x
  3. Step 3: Cross multiply
    2,880.86x = 4,320.38 × 932.66
  4. Step 4: Simplify right side
    2,880.86x = 4,029,426.34
  5. Step 5: Solve for x
    x = 4,029,426.34/2,880.86
  6. Step 6: Final answer
    x = 1,398.69

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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.