Home / 5,515.58-8,271.59-1,816.92

Finding the Fourth Proportional to 5,515.58, 8,271.59 and 1,816.92

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Solution

The fourth proportional to 5,515.58, 8,271.59 and 1,816.92 is: 2,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.58 : 8,271.59 = 1,816.92 : x
  2. Step 2: Convert to fraction form
    5,515.58/8,271.59 = 1,816.92/x
  3. Step 3: Cross multiply
    5,515.58x = 8,271.59 × 1,816.92
  4. Step 4: Simplify right side
    5,515.58x = 15,028,808.22
  5. Step 5: Solve for x
    x = 15,028,808.22/5,515.58
  6. Step 6: Final answer
    x = 2,724.79

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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.