Home / 3,768.90-5,657.40-2,127.03

Finding the Fourth Proportional to 3,768.90, 5,657.40 and 2,127.03

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Solution

The fourth proportional to 3,768.90, 5,657.40 and 2,127.03 is: 3,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.90 : 5,657.40 = 2,127.03 : x
  2. Step 2: Convert to fraction form
    3,768.90/5,657.40 = 2,127.03/x
  3. Step 3: Cross multiply
    3,768.90x = 5,657.40 × 2,127.03
  4. Step 4: Simplify right side
    3,768.90x = 12,033,459.52
  5. Step 5: Solve for x
    x = 12,033,459.52/3,768.90
  6. Step 6: Final answer
    x = 3,192.83

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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.