Home / 5,485.59-8,228.30-1,325.57

Finding the Fourth Proportional to 5,485.59, 8,228.30 and 1,325.57

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Solution

The fourth proportional to 5,485.59, 8,228.30 and 1,325.57 is: 1,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.59 : 8,228.30 = 1,325.57 : x
  2. Step 2: Convert to fraction form
    5,485.59/8,228.30 = 1,325.57/x
  3. Step 3: Cross multiply
    5,485.59x = 8,228.30 × 1,325.57
  4. Step 4: Simplify right side
    5,485.59x = 10,907,141.73
  5. Step 5: Solve for x
    x = 10,907,141.73/5,485.59
  6. Step 6: Final answer
    x = 1,988.33

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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.