Home / 2,193.46-3,026.90-1,308.80

Finding the Fourth Proportional to 2,193.46, 3,026.90 and 1,308.80

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Solution

The fourth proportional to 2,193.46, 3,026.90 and 1,308.80 is: 1,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.46 : 3,026.90 = 1,308.80 : x
  2. Step 2: Convert to fraction form
    2,193.46/3,026.90 = 1,308.80/x
  3. Step 3: Cross multiply
    2,193.46x = 3,026.90 × 1,308.80
  4. Step 4: Simplify right side
    2,193.46x = 3,961,606.72
  5. Step 5: Solve for x
    x = 3,961,606.72/2,193.46
  6. Step 6: Final answer
    x = 1,806.10

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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.