Home / 5,515.59-8,271.62-1,816.82

Finding the Fourth Proportional to 5,515.59, 8,271.62 and 1,816.82

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Solution

The fourth proportional to 5,515.59, 8,271.62 and 1,816.82 is: 2,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.59 : 8,271.62 = 1,816.82 : x
  2. Step 2: Convert to fraction form
    5,515.59/8,271.62 = 1,816.82/x
  3. Step 3: Cross multiply
    5,515.59x = 8,271.62 × 1,816.82
  4. Step 4: Simplify right side
    5,515.59x = 15,027,994.21
  5. Step 5: Solve for x
    x = 15,027,994.21/5,515.59
  6. Step 6: Final answer
    x = 2,724.64

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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.