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Finding the Fourth Proportional to 2,867.37, 4,301.16 and 919.32

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Solution

The fourth proportional to 2,867.37, 4,301.16 and 919.32 is: 1,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.37 : 4,301.16 = 919.32 : x
  2. Step 2: Convert to fraction form
    2,867.37/4,301.16 = 919.32/x
  3. Step 3: Cross multiply
    2,867.37x = 4,301.16 × 919.32
  4. Step 4: Simplify right side
    2,867.37x = 3,954,142.41
  5. Step 5: Solve for x
    x = 3,954,142.41/2,867.37
  6. Step 6: Final answer
    x = 1,379.01

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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.