Home / 3,271.88-4,515.05-1,779.75

Finding the Fourth Proportional to 3,271.88, 4,515.05 and 1,779.75

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Solution

The fourth proportional to 3,271.88, 4,515.05 and 1,779.75 is: 2,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.88 : 4,515.05 = 1,779.75 : x
  2. Step 2: Convert to fraction form
    3,271.88/4,515.05 = 1,779.75/x
  3. Step 3: Cross multiply
    3,271.88x = 4,515.05 × 1,779.75
  4. Step 4: Simplify right side
    3,271.88x = 8,035,651.34
  5. Step 5: Solve for x
    x = 8,035,651.34/3,271.88
  6. Step 6: Final answer
    x = 2,455.98

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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.