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Finding the Fourth Proportional to 6,105, 9,157.56 and 1,488

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Solution

The fourth proportional to 6,105, 9,157.56 and 1,488 is: 2,232.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,105 : 9,157.56 = 1,488 : x
  2. Step 2: Convert to fraction form
    6,105/9,157.56 = 1,488/x
  3. Step 3: Cross multiply
    6,105x = 9,157.56 × 1,488
  4. Step 4: Simplify right side
    6,105x = 13,626,449.28
  5. Step 5: Solve for x
    x = 13,626,449.28/6,105
  6. Step 6: Final answer
    x = 2,232.01

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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.