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Finding the Fourth Proportional to 5,579.32, 8,358.78 and 2,612.32

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Solution

The fourth proportional to 5,579.32, 8,358.78 and 2,612.32 is: 3,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.32 : 8,358.78 = 2,612.32 : x
  2. Step 2: Convert to fraction form
    5,579.32/8,358.78 = 2,612.32/x
  3. Step 3: Cross multiply
    5,579.32x = 8,358.78 × 2,612.32
  4. Step 4: Simplify right side
    5,579.32x = 21,835,808.17
  5. Step 5: Solve for x
    x = 21,835,808.17/5,579.32
  6. Step 6: Final answer
    x = 3,913.70

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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.