Home / 5,177.30-7,768.35-2,216.64

Finding the Fourth Proportional to 5,177.30, 7,768.35 and 2,216.64

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Solution

The fourth proportional to 5,177.30, 7,768.35 and 2,216.64 is: 3,325.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.30 : 7,768.35 = 2,216.64 : x
  2. Step 2: Convert to fraction form
    5,177.30/7,768.35 = 2,216.64/x
  3. Step 3: Cross multiply
    5,177.30x = 7,768.35 × 2,216.64
  4. Step 4: Simplify right side
    5,177.30x = 17,219,635.34
  5. Step 5: Solve for x
    x = 17,219,635.34/5,177.30
  6. Step 6: Final answer
    x = 3,325.99

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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.