Home / 1,852.70-2,556.71-1,189.81

Finding the Fourth Proportional to 1,852.70, 2,556.71 and 1,189.81

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Solution

The fourth proportional to 1,852.70, 2,556.71 and 1,189.81 is: 1,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.70 : 2,556.71 = 1,189.81 : x
  2. Step 2: Convert to fraction form
    1,852.70/2,556.71 = 1,189.81/x
  3. Step 3: Cross multiply
    1,852.70x = 2,556.71 × 1,189.81
  4. Step 4: Simplify right side
    1,852.70x = 3,041,986.34
  5. Step 5: Solve for x
    x = 3,041,986.34/1,852.70
  6. Step 6: Final answer
    x = 1,641.92

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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.