Home / 5,090.40-7,621.20-4,514.40

Finding the Fourth Proportional to 5,090.40, 7,621.20 and 4,514.40

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Solution

The fourth proportional to 5,090.40, 7,621.20 and 4,514.40 is: 6,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.40 : 7,621.20 = 4,514.40 : x
  2. Step 2: Convert to fraction form
    5,090.40/7,621.20 = 4,514.40/x
  3. Step 3: Cross multiply
    5,090.40x = 7,621.20 × 4,514.40
  4. Step 4: Simplify right side
    5,090.40x = 34,405,145.28
  5. Step 5: Solve for x
    x = 34,405,145.28/5,090.40
  6. Step 6: Final answer
    x = 6,758.83

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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.