Home / 2,208.20-3,045.90-1,683.32

Finding the Fourth Proportional to 2,208.20, 3,045.90 and 1,683.32

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Solution

The fourth proportional to 2,208.20, 3,045.90 and 1,683.32 is: 2,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.20 : 3,045.90 = 1,683.32 : x
  2. Step 2: Convert to fraction form
    2,208.20/3,045.90 = 1,683.32/x
  3. Step 3: Cross multiply
    2,208.20x = 3,045.90 × 1,683.32
  4. Step 4: Simplify right side
    2,208.20x = 5,127,224.39
  5. Step 5: Solve for x
    x = 5,127,224.39/2,208.20
  6. Step 6: Final answer
    x = 2,321.90

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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.