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Finding the Fourth Proportional to 5,606.55, 8,411.13 and 1,908.81

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Solution

The fourth proportional to 5,606.55, 8,411.13 and 1,908.81 is: 2,863.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,606.55 : 8,411.13 = 1,908.81 : x
  2. Step 2: Convert to fraction form
    5,606.55/8,411.13 = 1,908.81/x
  3. Step 3: Cross multiply
    5,606.55x = 8,411.13 × 1,908.81
  4. Step 4: Simplify right side
    5,606.55x = 16,055,249.06
  5. Step 5: Solve for x
    x = 16,055,249.06/5,606.55
  6. Step 6: Final answer
    x = 2,863.66

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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.