Home / 3,779.33-5,215.47-2,100.84

Finding the Fourth Proportional to 3,779.33, 5,215.47 and 2,100.84

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Solution

The fourth proportional to 3,779.33, 5,215.47 and 2,100.84 is: 2,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.33 : 5,215.47 = 2,100.84 : x
  2. Step 2: Convert to fraction form
    3,779.33/5,215.47 = 2,100.84/x
  3. Step 3: Cross multiply
    3,779.33x = 5,215.47 × 2,100.84
  4. Step 4: Simplify right side
    3,779.33x = 10,956,867.99
  5. Step 5: Solve for x
    x = 10,956,867.99/3,779.33
  6. Step 6: Final answer
    x = 2,899.16

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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.