Home / 5,412.51-8,120.25-1,715.27

Finding the Fourth Proportional to 5,412.51, 8,120.25 and 1,715.27

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Solution

The fourth proportional to 5,412.51, 8,120.25 and 1,715.27 is: 2,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.51 : 8,120.25 = 1,715.27 : x
  2. Step 2: Convert to fraction form
    5,412.51/8,120.25 = 1,715.27/x
  3. Step 3: Cross multiply
    5,412.51x = 8,120.25 × 1,715.27
  4. Step 4: Simplify right side
    5,412.51x = 13,928,380.62
  5. Step 5: Solve for x
    x = 13,928,380.62/5,412.51
  6. Step 6: Final answer
    x = 2,573.37

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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.