Home / 2,887.58-3,984.62-1,768.04

Finding the Fourth Proportional to 2,887.58, 3,984.62 and 1,768.04

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Solution

The fourth proportional to 2,887.58, 3,984.62 and 1,768.04 is: 2,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.58 : 3,984.62 = 1,768.04 : x
  2. Step 2: Convert to fraction form
    2,887.58/3,984.62 = 1,768.04/x
  3. Step 3: Cross multiply
    2,887.58x = 3,984.62 × 1,768.04
  4. Step 4: Simplify right side
    2,887.58x = 7,044,967.54
  5. Step 5: Solve for x
    x = 7,044,967.54/2,887.58
  6. Step 6: Final answer
    x = 2,439.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.