Home / 5,105.65-7,045.23-2,867.22

Finding the Fourth Proportional to 5,105.65, 7,045.23 and 2,867.22

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Solution

The fourth proportional to 5,105.65, 7,045.23 and 2,867.22 is: 3,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.65 : 7,045.23 = 2,867.22 : x
  2. Step 2: Convert to fraction form
    5,105.65/7,045.23 = 2,867.22/x
  3. Step 3: Cross multiply
    5,105.65x = 7,045.23 × 2,867.22
  4. Step 4: Simplify right side
    5,105.65x = 20,200,224.36
  5. Step 5: Solve for x
    x = 20,200,224.36/5,105.65
  6. Step 6: Final answer
    x = 3,956.45

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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.