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Finding the Fourth Proportional to 3,606.42, 5,409.42 and 1,266.53

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Solution

The fourth proportional to 3,606.42, 5,409.42 and 1,266.53 is: 1,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.42 : 5,409.42 = 1,266.53 : x
  2. Step 2: Convert to fraction form
    3,606.42/5,409.42 = 1,266.53/x
  3. Step 3: Cross multiply
    3,606.42x = 5,409.42 × 1,266.53
  4. Step 4: Simplify right side
    3,606.42x = 6,851,192.71
  5. Step 5: Solve for x
    x = 6,851,192.71/3,606.42
  6. Step 6: Final answer
    x = 1,899.72

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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.