Home / 7,110.78-10,666.23-2,727.20

Finding the Fourth Proportional to 7,110.78, 10,666.23 and 2,727.20

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Solution

The fourth proportional to 7,110.78, 10,666.23 and 2,727.20 is: 4,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.78 : 10,666.23 = 2,727.20 : x
  2. Step 2: Convert to fraction form
    7,110.78/10,666.23 = 2,727.20/x
  3. Step 3: Cross multiply
    7,110.78x = 10,666.23 × 2,727.20
  4. Step 4: Simplify right side
    7,110.78x = 29,088,889.12
  5. Step 5: Solve for x
    x = 29,088,889.12/7,110.78
  6. Step 6: Final answer
    x = 4,090.82

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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.