Home / 4,087.41-6,128.38-1,621.57

Finding the Fourth Proportional to 4,087.41, 6,128.38 and 1,621.57

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Solution

The fourth proportional to 4,087.41, 6,128.38 and 1,621.57 is: 2,431.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.41 : 6,128.38 = 1,621.57 : x
  2. Step 2: Convert to fraction form
    4,087.41/6,128.38 = 1,621.57/x
  3. Step 3: Cross multiply
    4,087.41x = 6,128.38 × 1,621.57
  4. Step 4: Simplify right side
    4,087.41x = 9,937,597.16
  5. Step 5: Solve for x
    x = 9,937,597.16/4,087.41
  6. Step 6: Final answer
    x = 2,431.27

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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.