Home / 7,141.07-10,712.25-1,876.10

Finding the Fourth Proportional to 7,141.07, 10,712.25 and 1,876.10

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Solution

The fourth proportional to 7,141.07, 10,712.25 and 1,876.10 is: 2,814.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.07 : 10,712.25 = 1,876.10 : x
  2. Step 2: Convert to fraction form
    7,141.07/10,712.25 = 1,876.10/x
  3. Step 3: Cross multiply
    7,141.07x = 10,712.25 × 1,876.10
  4. Step 4: Simplify right side
    7,141.07x = 20,097,198.66
  5. Step 5: Solve for x
    x = 20,097,198.66/7,141.07
  6. Step 6: Final answer
    x = 2,814.31

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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.