Home / 2,617.21-3,609.33-1,779.16

Finding the Fourth Proportional to 2,617.21, 3,609.33 and 1,779.16

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Solution

The fourth proportional to 2,617.21, 3,609.33 and 1,779.16 is: 2,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.21 : 3,609.33 = 1,779.16 : x
  2. Step 2: Convert to fraction form
    2,617.21/3,609.33 = 1,779.16/x
  3. Step 3: Cross multiply
    2,617.21x = 3,609.33 × 1,779.16
  4. Step 4: Simplify right side
    2,617.21x = 6,421,575.56
  5. Step 5: Solve for x
    x = 6,421,575.56/2,617.21
  6. Step 6: Final answer
    x = 2,453.60

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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.