Home / 3,779.12-5,668.38-2,388.40

Finding the Fourth Proportional to 3,779.12, 5,668.38 and 2,388.40

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Solution

The fourth proportional to 3,779.12, 5,668.38 and 2,388.40 is: 3,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.12 : 5,668.38 = 2,388.40 : x
  2. Step 2: Convert to fraction form
    3,779.12/5,668.38 = 2,388.40/x
  3. Step 3: Cross multiply
    3,779.12x = 5,668.38 × 2,388.40
  4. Step 4: Simplify right side
    3,779.12x = 13,538,376.51
  5. Step 5: Solve for x
    x = 13,538,376.51/3,779.12
  6. Step 6: Final answer
    x = 3,582.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.