Home / 2,880.47-4,320.61-932.63

Finding the Fourth Proportional to 2,880.47, 4,320.61 and 932.63

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Solution

The fourth proportional to 2,880.47, 4,320.61 and 932.63 is: 1,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.47 : 4,320.61 = 932.63 : x
  2. Step 2: Convert to fraction form
    2,880.47/4,320.61 = 932.63/x
  3. Step 3: Cross multiply
    2,880.47x = 4,320.61 × 932.63
  4. Step 4: Simplify right side
    2,880.47x = 4,029,506.57
  5. Step 5: Solve for x
    x = 4,029,506.57/2,880.47
  6. Step 6: Final answer
    x = 1,398.90

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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.