Home / 2,578.25-3,555.36-2,206.46

Finding the Fourth Proportional to 2,578.25, 3,555.36 and 2,206.46

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Solution

The fourth proportional to 2,578.25, 3,555.36 and 2,206.46 is: 3,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.25 : 3,555.36 = 2,206.46 : x
  2. Step 2: Convert to fraction form
    2,578.25/3,555.36 = 2,206.46/x
  3. Step 3: Cross multiply
    2,578.25x = 3,555.36 × 2,206.46
  4. Step 4: Simplify right side
    2,578.25x = 7,844,768.51
  5. Step 5: Solve for x
    x = 7,844,768.51/2,578.25
  6. Step 6: Final answer
    x = 3,042.67

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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.