Home / 6,520.86-9,779.22-2,137.32

Finding the Fourth Proportional to 6,520.86, 9,779.22 and 2,137.32

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Solution

The fourth proportional to 6,520.86, 9,779.22 and 2,137.32 is: 3,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.86 : 9,779.22 = 2,137.32 : x
  2. Step 2: Convert to fraction form
    6,520.86/9,779.22 = 2,137.32/x
  3. Step 3: Cross multiply
    6,520.86x = 9,779.22 × 2,137.32
  4. Step 4: Simplify right side
    6,520.86x = 20,901,322.49
  5. Step 5: Solve for x
    x = 20,901,322.49/6,520.86
  6. Step 6: Final answer
    x = 3,205.30

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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.