Home / 4,620.40-6,928.98-2,154.76

Finding the Fourth Proportional to 4,620.40, 6,928.98 and 2,154.76

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Solution

The fourth proportional to 4,620.40, 6,928.98 and 2,154.76 is: 3,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.40 : 6,928.98 = 2,154.76 : x
  2. Step 2: Convert to fraction form
    4,620.40/6,928.98 = 2,154.76/x
  3. Step 3: Cross multiply
    4,620.40x = 6,928.98 × 2,154.76
  4. Step 4: Simplify right side
    4,620.40x = 14,930,288.94
  5. Step 5: Solve for x
    x = 14,930,288.94/4,620.40
  6. Step 6: Final answer
    x = 3,231.38

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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.