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Finding the Fourth Proportional to 6,339.31, 9,509.99 and 1,955.75

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Solution

The fourth proportional to 6,339.31, 9,509.99 and 1,955.75 is: 2,933.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.31 : 9,509.99 = 1,955.75 : x
  2. Step 2: Convert to fraction form
    6,339.31/9,509.99 = 1,955.75/x
  3. Step 3: Cross multiply
    6,339.31x = 9,509.99 × 1,955.75
  4. Step 4: Simplify right side
    6,339.31x = 18,599,105.61
  5. Step 5: Solve for x
    x = 18,599,105.61/6,339.31
  6. Step 6: Final answer
    x = 2,933.93

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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.