Home / 2,540.58-3,810.87-1,668.59

Finding the Fourth Proportional to 2,540.58, 3,810.87 and 1,668.59

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Solution

The fourth proportional to 2,540.58, 3,810.87 and 1,668.59 is: 2,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.58 : 3,810.87 = 1,668.59 : x
  2. Step 2: Convert to fraction form
    2,540.58/3,810.87 = 1,668.59/x
  3. Step 3: Cross multiply
    2,540.58x = 3,810.87 × 1,668.59
  4. Step 4: Simplify right side
    2,540.58x = 6,358,779.57
  5. Step 5: Solve for x
    x = 6,358,779.57/2,540.58
  6. Step 6: Final answer
    x = 2,502.89

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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.