Home / 6,520.60-9,779.86-2,077.69

Finding the Fourth Proportional to 6,520.60, 9,779.86 and 2,077.69

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Solution

The fourth proportional to 6,520.60, 9,779.86 and 2,077.69 is: 3,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.60 : 9,779.86 = 2,077.69 : x
  2. Step 2: Convert to fraction form
    6,520.60/9,779.86 = 2,077.69/x
  3. Step 3: Cross multiply
    6,520.60x = 9,779.86 × 2,077.69
  4. Step 4: Simplify right side
    6,520.60x = 20,319,517.32
  5. Step 5: Solve for x
    x = 20,319,517.32/6,520.60
  6. Step 6: Final answer
    x = 3,116.20

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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.