Home / 2,880.30-4,320.45-932.70

Finding the Fourth Proportional to 2,880.30, 4,320.45 and 932.70

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Solution

The fourth proportional to 2,880.30, 4,320.45 and 932.70 is: 1,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.30 : 4,320.45 = 932.70 : x
  2. Step 2: Convert to fraction form
    2,880.30/4,320.45 = 932.70/x
  3. Step 3: Cross multiply
    2,880.30x = 4,320.45 × 932.70
  4. Step 4: Simplify right side
    2,880.30x = 4,029,683.72
  5. Step 5: Solve for x
    x = 4,029,683.72/2,880.30
  6. Step 6: Final answer
    x = 1,399.05

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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.