Home / 9,290.20-13,935.75-3,742.80

Finding the Fourth Proportional to 9,290.20, 13,935.75 and 3,742.80

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Solution

The fourth proportional to 9,290.20, 13,935.75 and 3,742.80 is: 5,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.20 : 13,935.75 = 3,742.80 : x
  2. Step 2: Convert to fraction form
    9,290.20/13,935.75 = 3,742.80/x
  3. Step 3: Cross multiply
    9,290.20x = 13,935.75 × 3,742.80
  4. Step 4: Simplify right side
    9,290.20x = 52,158,725.10
  5. Step 5: Solve for x
    x = 52,158,725.10/9,290.20
  6. Step 6: Final answer
    x = 5,614.38

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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.