Home / 6,289.13-8,679.12-3,563.42

Finding the Fourth Proportional to 6,289.13, 8,679.12 and 3,563.42

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Solution

The fourth proportional to 6,289.13, 8,679.12 and 3,563.42 is: 4,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.13 : 8,679.12 = 3,563.42 : x
  2. Step 2: Convert to fraction form
    6,289.13/8,679.12 = 3,563.42/x
  3. Step 3: Cross multiply
    6,289.13x = 8,679.12 × 3,563.42
  4. Step 4: Simplify right side
    6,289.13x = 30,927,349.79
  5. Step 5: Solve for x
    x = 30,927,349.79/6,289.13
  6. Step 6: Final answer
    x = 4,917.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.