Home / 6,406.80-9,611.55-2,511.20

Finding the Fourth Proportional to 6,406.80, 9,611.55 and 2,511.20

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Solution

The fourth proportional to 6,406.80, 9,611.55 and 2,511.20 is: 3,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,406.80 : 9,611.55 = 2,511.20 : x
  2. Step 2: Convert to fraction form
    6,406.80/9,611.55 = 2,511.20/x
  3. Step 3: Cross multiply
    6,406.80x = 9,611.55 × 2,511.20
  4. Step 4: Simplify right side
    6,406.80x = 24,136,476.30
  5. Step 5: Solve for x
    x = 24,136,476.30/6,406.80
  6. Step 6: Final answer
    x = 3,767.32

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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.