Home / 2,617.32-3,926.58-768.36

Finding the Fourth Proportional to 2,617.32, 3,926.58 and 768.36

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Solution

The fourth proportional to 2,617.32, 3,926.58 and 768.36 is: 1,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.32 : 3,926.58 = 768.36 : x
  2. Step 2: Convert to fraction form
    2,617.32/3,926.58 = 768.36/x
  3. Step 3: Cross multiply
    2,617.32x = 3,926.58 × 768.36
  4. Step 4: Simplify right side
    2,617.32x = 3,017,027.01
  5. Step 5: Solve for x
    x = 3,017,027.01/2,617.32
  6. Step 6: Final answer
    x = 1,152.72

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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.