Home / 4,739.28-6,540.36-2,643.12

Finding the Fourth Proportional to 4,739.28, 6,540.36 and 2,643.12

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Solution

The fourth proportional to 4,739.28, 6,540.36 and 2,643.12 is: 3,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.28 : 6,540.36 = 2,643.12 : x
  2. Step 2: Convert to fraction form
    4,739.28/6,540.36 = 2,643.12/x
  3. Step 3: Cross multiply
    4,739.28x = 6,540.36 × 2,643.12
  4. Step 4: Simplify right side
    4,739.28x = 17,286,956.32
  5. Step 5: Solve for x
    x = 17,286,956.32/4,739.28
  6. Step 6: Final answer
    x = 3,647.59

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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.