Home / 2,728.50-3,764.88-1,533.34

Finding the Fourth Proportional to 2,728.50, 3,764.88 and 1,533.34

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Solution

The fourth proportional to 2,728.50, 3,764.88 and 1,533.34 is: 2,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.50 : 3,764.88 = 1,533.34 : x
  2. Step 2: Convert to fraction form
    2,728.50/3,764.88 = 1,533.34/x
  3. Step 3: Cross multiply
    2,728.50x = 3,764.88 × 1,533.34
  4. Step 4: Simplify right side
    2,728.50x = 5,772,856.26
  5. Step 5: Solve for x
    x = 5,772,856.26/2,728.50
  6. Step 6: Final answer
    x = 2,115.76

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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.