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Finding the Fourth Proportional to 6,239.61, 9,358.61 and 1,857.51

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Solution

The fourth proportional to 6,239.61, 9,358.61 and 1,857.51 is: 2,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.61 : 9,358.61 = 1,857.51 : x
  2. Step 2: Convert to fraction form
    6,239.61/9,358.61 = 1,857.51/x
  3. Step 3: Cross multiply
    6,239.61x = 9,358.61 × 1,857.51
  4. Step 4: Simplify right side
    6,239.61x = 17,383,702.37
  5. Step 5: Solve for x
    x = 17,383,702.37/6,239.61
  6. Step 6: Final answer
    x = 2,786.02

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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.