Home / 6,480.15-9,720.27-2,779.26

Finding the Fourth Proportional to 6,480.15, 9,720.27 and 2,779.26

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Solution

The fourth proportional to 6,480.15, 9,720.27 and 2,779.26 is: 4,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.15 : 9,720.27 = 2,779.26 : x
  2. Step 2: Convert to fraction form
    6,480.15/9,720.27 = 2,779.26/x
  3. Step 3: Cross multiply
    6,480.15x = 9,720.27 × 2,779.26
  4. Step 4: Simplify right side
    6,480.15x = 27,015,157.60
  5. Step 5: Solve for x
    x = 27,015,157.60/6,480.15
  6. Step 6: Final answer
    x = 4,168.91

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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.