Home / 3,813.48-5,715.36-1,621.62

Finding the Fourth Proportional to 3,813.48, 5,715.36 and 1,621.62

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Solution

The fourth proportional to 3,813.48, 5,715.36 and 1,621.62 is: 2,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.48 : 5,715.36 = 1,621.62 : x
  2. Step 2: Convert to fraction form
    3,813.48/5,715.36 = 1,621.62/x
  3. Step 3: Cross multiply
    3,813.48x = 5,715.36 × 1,621.62
  4. Step 4: Simplify right side
    3,813.48x = 9,268,142.08
  5. Step 5: Solve for x
    x = 9,268,142.08/3,813.48
  6. Step 6: Final answer
    x = 2,430.36

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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.