Home / 2,611.12-3,911.16-2,431.32

Finding the Fourth Proportional to 2,611.12, 3,911.16 and 2,431.32

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Solution

The fourth proportional to 2,611.12, 3,911.16 and 2,431.32 is: 3,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.12 : 3,911.16 = 2,431.32 : x
  2. Step 2: Convert to fraction form
    2,611.12/3,911.16 = 2,431.32/x
  3. Step 3: Cross multiply
    2,611.12x = 3,911.16 × 2,431.32
  4. Step 4: Simplify right side
    2,611.12x = 9,509,281.53
  5. Step 5: Solve for x
    x = 9,509,281.53/2,611.12
  6. Step 6: Final answer
    x = 3,641.84

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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.