Home / 3,989.64-5,504.74-2,288.32

Finding the Fourth Proportional to 3,989.64, 5,504.74 and 2,288.32

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Solution

The fourth proportional to 3,989.64, 5,504.74 and 2,288.32 is: 3,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.64 : 5,504.74 = 2,288.32 : x
  2. Step 2: Convert to fraction form
    3,989.64/5,504.74 = 2,288.32/x
  3. Step 3: Cross multiply
    3,989.64x = 5,504.74 × 2,288.32
  4. Step 4: Simplify right side
    3,989.64x = 12,596,606.64
  5. Step 5: Solve for x
    x = 12,596,606.64/3,989.64
  6. Step 6: Final answer
    x = 3,157.33

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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.