Home / 6,289.21-8,679.07-3,417.92

Finding the Fourth Proportional to 6,289.21, 8,679.07 and 3,417.92

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Solution

The fourth proportional to 6,289.21, 8,679.07 and 3,417.92 is: 4,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.21 : 8,679.07 = 3,417.92 : x
  2. Step 2: Convert to fraction form
    6,289.21/8,679.07 = 3,417.92/x
  3. Step 3: Cross multiply
    6,289.21x = 8,679.07 × 3,417.92
  4. Step 4: Simplify right side
    6,289.21x = 29,664,306.45
  5. Step 5: Solve for x
    x = 29,664,306.45/6,289.21
  6. Step 6: Final answer
    x = 4,716.70

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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.