Home / 6,127.72-9,189.40-2,840.20

Finding the Fourth Proportional to 6,127.72, 9,189.40 and 2,840.20

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Solution

The fourth proportional to 6,127.72, 9,189.40 and 2,840.20 is: 4,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,127.72 : 9,189.40 = 2,840.20 : x
  2. Step 2: Convert to fraction form
    6,127.72/9,189.40 = 2,840.20/x
  3. Step 3: Cross multiply
    6,127.72x = 9,189.40 × 2,840.20
  4. Step 4: Simplify right side
    6,127.72x = 26,099,733.88
  5. Step 5: Solve for x
    x = 26,099,733.88/6,127.72
  6. Step 6: Final answer
    x = 4,259.29

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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.