Home / 2,838.37-4,257.55-890.72

Finding the Fourth Proportional to 2,838.37, 4,257.55 and 890.72

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Solution

The fourth proportional to 2,838.37, 4,257.55 and 890.72 is: 1,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.37 : 4,257.55 = 890.72 : x
  2. Step 2: Convert to fraction form
    2,838.37/4,257.55 = 890.72/x
  3. Step 3: Cross multiply
    2,838.37x = 4,257.55 × 890.72
  4. Step 4: Simplify right side
    2,838.37x = 3,792,280.48
  5. Step 5: Solve for x
    x = 3,792,280.48/2,838.37
  6. Step 6: Final answer
    x = 1,336.08

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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.