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Finding the Fourth Proportional to 5,606.79, 8,407.75 and 1,908.02

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Solution

The fourth proportional to 5,606.79, 8,407.75 and 1,908.02 is: 2,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,606.79 : 8,407.75 = 1,908.02 : x
  2. Step 2: Convert to fraction form
    5,606.79/8,407.75 = 1,908.02/x
  3. Step 3: Cross multiply
    5,606.79x = 8,407.75 × 1,908.02
  4. Step 4: Simplify right side
    5,606.79x = 16,042,155.16
  5. Step 5: Solve for x
    x = 16,042,155.16/5,606.79
  6. Step 6: Final answer
    x = 2,861.20

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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.