Home / 2,639.84-3,958.54-1,485.59

Finding the Fourth Proportional to 2,639.84, 3,958.54 and 1,485.59

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Solution

The fourth proportional to 2,639.84, 3,958.54 and 1,485.59 is: 2,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.84 : 3,958.54 = 1,485.59 : x
  2. Step 2: Convert to fraction form
    2,639.84/3,958.54 = 1,485.59/x
  3. Step 3: Cross multiply
    2,639.84x = 3,958.54 × 1,485.59
  4. Step 4: Simplify right side
    2,639.84x = 5,880,767.44
  5. Step 5: Solve for x
    x = 5,880,767.44/2,639.84
  6. Step 6: Final answer
    x = 2,227.70

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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.