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Finding the Fourth Proportional to 1,789.48, 2,684.16 and 969.36

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Solution

The fourth proportional to 1,789.48, 2,684.16 and 969.36 is: 1,454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.48 : 2,684.16 = 969.36 : x
  2. Step 2: Convert to fraction form
    1,789.48/2,684.16 = 969.36/x
  3. Step 3: Cross multiply
    1,789.48x = 2,684.16 × 969.36
  4. Step 4: Simplify right side
    1,789.48x = 2,601,917.34
  5. Step 5: Solve for x
    x = 2,601,917.34/1,789.48
  6. Step 6: Final answer
    x = 1,454.01

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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.