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Finding the Fourth Proportional to 5,579.34, 8,363.12 and 1,880.28

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Solution

The fourth proportional to 5,579.34, 8,363.12 and 1,880.28 is: 2,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.34 : 8,363.12 = 1,880.28 : x
  2. Step 2: Convert to fraction form
    5,579.34/8,363.12 = 1,880.28/x
  3. Step 3: Cross multiply
    5,579.34x = 8,363.12 × 1,880.28
  4. Step 4: Simplify right side
    5,579.34x = 15,725,007.27
  5. Step 5: Solve for x
    x = 15,725,007.27/5,579.34
  6. Step 6: Final answer
    x = 2,818.44

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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.