Home / 4,997.11-6,900.45-3,111.93

Finding the Fourth Proportional to 4,997.11, 6,900.45 and 3,111.93

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Solution

The fourth proportional to 4,997.11, 6,900.45 and 3,111.93 is: 4,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997.11 : 6,900.45 = 3,111.93 : x
  2. Step 2: Convert to fraction form
    4,997.11/6,900.45 = 3,111.93/x
  3. Step 3: Cross multiply
    4,997.11x = 6,900.45 × 3,111.93
  4. Step 4: Simplify right side
    4,997.11x = 21,473,717.37
  5. Step 5: Solve for x
    x = 21,473,717.37/4,997.11
  6. Step 6: Final answer
    x = 4,297.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.