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Finding the Fourth Proportional to 1,865.25, 2,797.87 and 888.39

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Solution

The fourth proportional to 1,865.25, 2,797.87 and 888.39 is: 1,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.25 : 2,797.87 = 888.39 : x
  2. Step 2: Convert to fraction form
    1,865.25/2,797.87 = 888.39/x
  3. Step 3: Cross multiply
    1,865.25x = 2,797.87 × 888.39
  4. Step 4: Simplify right side
    1,865.25x = 2,485,585.74
  5. Step 5: Solve for x
    x = 2,485,585.74/1,865.25
  6. Step 6: Final answer
    x = 1,332.58

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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.