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Finding the Fourth Proportional to 4,090.72, 6,136 and 1,169

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Solution

The fourth proportional to 4,090.72, 6,136 and 1,169 is: 1,753.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.72 : 6,136 = 1,169 : x
  2. Step 2: Convert to fraction form
    4,090.72/6,136 = 1,169/x
  3. Step 3: Cross multiply
    4,090.72x = 6,136 × 1,169
  4. Step 4: Simplify right side
    4,090.72x = 7,172,984
  5. Step 5: Solve for x
    x = 7,172,984/4,090.72
  6. Step 6: Final answer
    x = 1,753.48

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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.