Home / 2,190.36-3,020.52-1,403.04

Finding the Fourth Proportional to 2,190.36, 3,020.52 and 1,403.04

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Solution

The fourth proportional to 2,190.36, 3,020.52 and 1,403.04 is: 1,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.36 : 3,020.52 = 1,403.04 : x
  2. Step 2: Convert to fraction form
    2,190.36/3,020.52 = 1,403.04/x
  3. Step 3: Cross multiply
    2,190.36x = 3,020.52 × 1,403.04
  4. Step 4: Simplify right side
    2,190.36x = 4,237,910.38
  5. Step 5: Solve for x
    x = 4,237,910.38/2,190.36
  6. Step 6: Final answer
    x = 1,934.80

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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.