Home / 2,611.24-3,916.86-1,150.40

Finding the Fourth Proportional to 2,611.24, 3,916.86 and 1,150.40

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Solution

The fourth proportional to 2,611.24, 3,916.86 and 1,150.40 is: 1,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.24 : 3,916.86 = 1,150.40 : x
  2. Step 2: Convert to fraction form
    2,611.24/3,916.86 = 1,150.40/x
  3. Step 3: Cross multiply
    2,611.24x = 3,916.86 × 1,150.40
  4. Step 4: Simplify right side
    2,611.24x = 4,505,955.74
  5. Step 5: Solve for x
    x = 4,505,955.74/2,611.24
  6. Step 6: Final answer
    x = 1,725.60

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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.