Home / 1,853.11-2,543.67-1,638.59

Finding the Fourth Proportional to 1,853.11, 2,543.67 and 1,638.59

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Solution

The fourth proportional to 1,853.11, 2,543.67 and 1,638.59 is: 2,249.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.11 : 2,543.67 = 1,638.59 : x
  2. Step 2: Convert to fraction form
    1,853.11/2,543.67 = 1,638.59/x
  3. Step 3: Cross multiply
    1,853.11x = 2,543.67 × 1,638.59
  4. Step 4: Simplify right side
    1,853.11x = 4,168,019.51
  5. Step 5: Solve for x
    x = 4,168,019.51/1,853.11
  6. Step 6: Final answer
    x = 2,249.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.