Home / 7,111.16-10,666.26-2,729.08

Finding the Fourth Proportional to 7,111.16, 10,666.26 and 2,729.08

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Solution

The fourth proportional to 7,111.16, 10,666.26 and 2,729.08 is: 4,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.16 : 10,666.26 = 2,729.08 : x
  2. Step 2: Convert to fraction form
    7,111.16/10,666.26 = 2,729.08/x
  3. Step 3: Cross multiply
    7,111.16x = 10,666.26 × 2,729.08
  4. Step 4: Simplify right side
    7,111.16x = 29,109,076.84
  5. Step 5: Solve for x
    x = 29,109,076.84/7,111.16
  6. Step 6: Final answer
    x = 4,093.44

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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.