Home / 3,215.10-4,431.70-2,624.62

Finding the Fourth Proportional to 3,215.10, 4,431.70 and 2,624.62

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Solution

The fourth proportional to 3,215.10, 4,431.70 and 2,624.62 is: 3,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.10 : 4,431.70 = 2,624.62 : x
  2. Step 2: Convert to fraction form
    3,215.10/4,431.70 = 2,624.62/x
  3. Step 3: Cross multiply
    3,215.10x = 4,431.70 × 2,624.62
  4. Step 4: Simplify right side
    3,215.10x = 11,631,528.45
  5. Step 5: Solve for x
    x = 11,631,528.45/3,215.10
  6. Step 6: Final answer
    x = 3,617.78

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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.