Home / 2,659.24-3,988.38-928.36

Finding the Fourth Proportional to 2,659.24, 3,988.38 and 928.36

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Solution

The fourth proportional to 2,659.24, 3,988.38 and 928.36 is: 1,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.24 : 3,988.38 = 928.36 : x
  2. Step 2: Convert to fraction form
    2,659.24/3,988.38 = 928.36/x
  3. Step 3: Cross multiply
    2,659.24x = 3,988.38 × 928.36
  4. Step 4: Simplify right side
    2,659.24x = 3,702,652.46
  5. Step 5: Solve for x
    x = 3,702,652.46/2,659.24
  6. Step 6: Final answer
    x = 1,392.37

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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.