Home / 5,111.07-7,051.64-3,014.79

Finding the Fourth Proportional to 5,111.07, 7,051.64 and 3,014.79

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Solution

The fourth proportional to 5,111.07, 7,051.64 and 3,014.79 is: 4,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.07 : 7,051.64 = 3,014.79 : x
  2. Step 2: Convert to fraction form
    5,111.07/7,051.64 = 3,014.79/x
  3. Step 3: Cross multiply
    5,111.07x = 7,051.64 × 3,014.79
  4. Step 4: Simplify right side
    5,111.07x = 21,259,198.68
  5. Step 5: Solve for x
    x = 21,259,198.68/5,111.07
  6. Step 6: Final answer
    x = 4,159.44

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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.