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Finding the Fourth Proportional to 3,569.72, 5,353.92 and 2,880.44

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Solution

The fourth proportional to 3,569.72, 5,353.92 and 2,880.44 is: 4,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.72 : 5,353.92 = 2,880.44 : x
  2. Step 2: Convert to fraction form
    3,569.72/5,353.92 = 2,880.44/x
  3. Step 3: Cross multiply
    3,569.72x = 5,353.92 × 2,880.44
  4. Step 4: Simplify right side
    3,569.72x = 15,421,645.32
  5. Step 5: Solve for x
    x = 15,421,645.32/3,569.72
  6. Step 6: Final answer
    x = 4,320.13

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1.5x scale

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.