Home / 2,078.40-2,868.80-1,194.80

Finding the Fourth Proportional to 2,078.40, 2,868.80 and 1,194.80

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Solution

The fourth proportional to 2,078.40, 2,868.80 and 1,194.80 is: 1,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.40 : 2,868.80 = 1,194.80 : x
  2. Step 2: Convert to fraction form
    2,078.40/2,868.80 = 1,194.80/x
  3. Step 3: Cross multiply
    2,078.40x = 2,868.80 × 1,194.80
  4. Step 4: Simplify right side
    2,078.40x = 3,427,642.24
  5. Step 5: Solve for x
    x = 3,427,642.24/2,078.40
  6. Step 6: Final answer
    x = 1,649.17

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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.