Home / 5,415.74-8,121.96-2,817.26

Finding the Fourth Proportional to 5,415.74, 8,121.96 and 2,817.26

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Solution

The fourth proportional to 5,415.74, 8,121.96 and 2,817.26 is: 4,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.74 : 8,121.96 = 2,817.26 : x
  2. Step 2: Convert to fraction form
    5,415.74/8,121.96 = 2,817.26/x
  3. Step 3: Cross multiply
    5,415.74x = 8,121.96 × 2,817.26
  4. Step 4: Simplify right side
    5,415.74x = 22,881,673.03
  5. Step 5: Solve for x
    x = 22,881,673.03/5,415.74
  6. Step 6: Final answer
    x = 4,225.03

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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.