Home / 3,813.95-5,718.84-1,621.47

Finding the Fourth Proportional to 3,813.95, 5,718.84 and 1,621.47

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Solution

The fourth proportional to 3,813.95, 5,718.84 and 1,621.47 is: 2,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.95 : 5,718.84 = 1,621.47 : x
  2. Step 2: Convert to fraction form
    3,813.95/5,718.84 = 1,621.47/x
  3. Step 3: Cross multiply
    3,813.95x = 5,718.84 × 1,621.47
  4. Step 4: Simplify right side
    3,813.95x = 9,272,927.49
  5. Step 5: Solve for x
    x = 9,272,927.49/3,813.95
  6. Step 6: Final answer
    x = 2,431.32

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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.