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Finding the Fourth Proportional to 5,653.64, 8,477.62 and 2,691.20

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Solution

The fourth proportional to 5,653.64, 8,477.62 and 2,691.20 is: 4,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.64 : 8,477.62 = 2,691.20 : x
  2. Step 2: Convert to fraction form
    5,653.64/8,477.62 = 2,691.20/x
  3. Step 3: Cross multiply
    5,653.64x = 8,477.62 × 2,691.20
  4. Step 4: Simplify right side
    5,653.64x = 22,814,970.94
  5. Step 5: Solve for x
    x = 22,814,970.94/5,653.64
  6. Step 6: Final answer
    x = 4,035.45

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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.