Home / 2,940.84-4,411.26-1,209.60

Finding the Fourth Proportional to 2,940.84, 4,411.26 and 1,209.60

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Solution

The fourth proportional to 2,940.84, 4,411.26 and 1,209.60 is: 1,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.84 : 4,411.26 = 1,209.60 : x
  2. Step 2: Convert to fraction form
    2,940.84/4,411.26 = 1,209.60/x
  3. Step 3: Cross multiply
    2,940.84x = 4,411.26 × 1,209.60
  4. Step 4: Simplify right side
    2,940.84x = 5,335,860.10
  5. Step 5: Solve for x
    x = 5,335,860.10/2,940.84
  6. Step 6: Final answer
    x = 1,814.40

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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.