Home / 2,455.28-3,389-1,616.60

Finding the Fourth Proportional to 2,455.28, 3,389 and 1,616.60

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Solution

The fourth proportional to 2,455.28, 3,389 and 1,616.60 is: 2,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.28 : 3,389 = 1,616.60 : x
  2. Step 2: Convert to fraction form
    2,455.28/3,389 = 1,616.60/x
  3. Step 3: Cross multiply
    2,455.28x = 3,389 × 1,616.60
  4. Step 4: Simplify right side
    2,455.28x = 5,478,657.40
  5. Step 5: Solve for x
    x = 5,478,657.40/2,455.28
  6. Step 6: Final answer
    x = 2,231.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.