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Finding the Fourth Proportional to 2,896.86, 4,345.65 and 948.39

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Solution

The fourth proportional to 2,896.86, 4,345.65 and 948.39 is: 1,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896.86 : 4,345.65 = 948.39 : x
  2. Step 2: Convert to fraction form
    2,896.86/4,345.65 = 948.39/x
  3. Step 3: Cross multiply
    2,896.86x = 4,345.65 × 948.39
  4. Step 4: Simplify right side
    2,896.86x = 4,121,371.00
  5. Step 5: Solve for x
    x = 4,121,371.00/2,896.86
  6. Step 6: Final answer
    x = 1,422.70

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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.