Home / 3,813.98-5,718.74-1,621.58

Finding the Fourth Proportional to 3,813.98, 5,718.74 and 1,621.58

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Solution

The fourth proportional to 3,813.98, 5,718.74 and 1,621.58 is: 2,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.98 : 5,718.74 = 1,621.58 : x
  2. Step 2: Convert to fraction form
    3,813.98/5,718.74 = 1,621.58/x
  3. Step 3: Cross multiply
    3,813.98x = 5,718.74 × 1,621.58
  4. Step 4: Simplify right side
    3,813.98x = 9,273,357.71
  5. Step 5: Solve for x
    x = 9,273,357.71/3,813.98
  6. Step 6: Final answer
    x = 2,431.42

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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.