Home / 3,145.37-4,715.75-1,584.60

Finding the Fourth Proportional to 3,145.37, 4,715.75 and 1,584.60

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Solution

The fourth proportional to 3,145.37, 4,715.75 and 1,584.60 is: 2,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.37 : 4,715.75 = 1,584.60 : x
  2. Step 2: Convert to fraction form
    3,145.37/4,715.75 = 1,584.60/x
  3. Step 3: Cross multiply
    3,145.37x = 4,715.75 × 1,584.60
  4. Step 4: Simplify right side
    3,145.37x = 7,472,569.53
  5. Step 5: Solve for x
    x = 7,472,569.53/3,145.37
  6. Step 6: Final answer
    x = 2,375.74

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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.