Home / 4,320.45-6,460.70-3,280.68

Finding the Fourth Proportional to 4,320.45, 6,460.70 and 3,280.68

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Solution

The fourth proportional to 4,320.45, 6,460.70 and 3,280.68 is: 4,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.45 : 6,460.70 = 3,280.68 : x
  2. Step 2: Convert to fraction form
    4,320.45/6,460.70 = 3,280.68/x
  3. Step 3: Cross multiply
    4,320.45x = 6,460.70 × 3,280.68
  4. Step 4: Simplify right side
    4,320.45x = 21,195,472.87
  5. Step 5: Solve for x
    x = 21,195,472.87/4,320.45
  6. Step 6: Final answer
    x = 4,905.85

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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.