Home / 5,401.24-8,090.70-2,630.20

Finding the Fourth Proportional to 5,401.24, 8,090.70 and 2,630.20

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Solution

The fourth proportional to 5,401.24, 8,090.70 and 2,630.20 is: 3,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.24 : 8,090.70 = 2,630.20 : x
  2. Step 2: Convert to fraction form
    5,401.24/8,090.70 = 2,630.20/x
  3. Step 3: Cross multiply
    5,401.24x = 8,090.70 × 2,630.20
  4. Step 4: Simplify right side
    5,401.24x = 21,280,159.14
  5. Step 5: Solve for x
    x = 21,280,159.14/5,401.24
  6. Step 6: Final answer
    x = 3,939.87

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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.