Home / 5,515.33-8,271.21-1,816.69

Finding the Fourth Proportional to 5,515.33, 8,271.21 and 1,816.69

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Solution

The fourth proportional to 5,515.33, 8,271.21 and 1,816.69 is: 2,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.33 : 8,271.21 = 1,816.69 : x
  2. Step 2: Convert to fraction form
    5,515.33/8,271.21 = 1,816.69/x
  3. Step 3: Cross multiply
    5,515.33x = 8,271.21 × 1,816.69
  4. Step 4: Simplify right side
    5,515.33x = 15,026,224.49
  5. Step 5: Solve for x
    x = 15,026,224.49/5,515.33
  6. Step 6: Final answer
    x = 2,724.45

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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.