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Finding the Fourth Proportional to 2,858.64, 4,288.14 and 1,104.48

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Solution

The fourth proportional to 2,858.64, 4,288.14 and 1,104.48 is: 1,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.64 : 4,288.14 = 1,104.48 : x
  2. Step 2: Convert to fraction form
    2,858.64/4,288.14 = 1,104.48/x
  3. Step 3: Cross multiply
    2,858.64x = 4,288.14 × 1,104.48
  4. Step 4: Simplify right side
    2,858.64x = 4,736,164.87
  5. Step 5: Solve for x
    x = 4,736,164.87/2,858.64
  6. Step 6: Final answer
    x = 1,656.79

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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.