Home / 3,440.73-4,748.61-2,880.21

Finding the Fourth Proportional to 3,440.73, 4,748.61 and 2,880.21

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Solution

The fourth proportional to 3,440.73, 4,748.61 and 2,880.21 is: 3,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.73 : 4,748.61 = 2,880.21 : x
  2. Step 2: Convert to fraction form
    3,440.73/4,748.61 = 2,880.21/x
  3. Step 3: Cross multiply
    3,440.73x = 4,748.61 × 2,880.21
  4. Step 4: Simplify right side
    3,440.73x = 13,676,994.01
  5. Step 5: Solve for x
    x = 13,676,994.01/3,440.73
  6. Step 6: Final answer
    x = 3,975.03

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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.