Home / 2,809.84-4,205.56-2,540.40

Finding the Fourth Proportional to 2,809.84, 4,205.56 and 2,540.40

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Solution

The fourth proportional to 2,809.84, 4,205.56 and 2,540.40 is: 3,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.84 : 4,205.56 = 2,540.40 : x
  2. Step 2: Convert to fraction form
    2,809.84/4,205.56 = 2,540.40/x
  3. Step 3: Cross multiply
    2,809.84x = 4,205.56 × 2,540.40
  4. Step 4: Simplify right side
    2,809.84x = 10,683,804.62
  5. Step 5: Solve for x
    x = 10,683,804.62/2,809.84
  6. Step 6: Final answer
    x = 3,802.28

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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.