Home / 2,111.03-2,913.14-1,166.80

Finding the Fourth Proportional to 2,111.03, 2,913.14 and 1,166.80

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Solution

The fourth proportional to 2,111.03, 2,913.14 and 1,166.80 is: 1,610.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.03 : 2,913.14 = 1,166.80 : x
  2. Step 2: Convert to fraction form
    2,111.03/2,913.14 = 1,166.80/x
  3. Step 3: Cross multiply
    2,111.03x = 2,913.14 × 1,166.80
  4. Step 4: Simplify right side
    2,111.03x = 3,399,051.75
  5. Step 5: Solve for x
    x = 3,399,051.75/2,111.03
  6. Step 6: Final answer
    x = 1,610.14

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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.