Home / 2,206.36-3,045.46-1,420.41

Finding the Fourth Proportional to 2,206.36, 3,045.46 and 1,420.41

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Solution

The fourth proportional to 2,206.36, 3,045.46 and 1,420.41 is: 1,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.36 : 3,045.46 = 1,420.41 : x
  2. Step 2: Convert to fraction form
    2,206.36/3,045.46 = 1,420.41/x
  3. Step 3: Cross multiply
    2,206.36x = 3,045.46 × 1,420.41
  4. Step 4: Simplify right side
    2,206.36x = 4,325,794.22
  5. Step 5: Solve for x
    x = 4,325,794.22/2,206.36
  6. Step 6: Final answer
    x = 1,960.60

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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.