Home / 3,500.50-4,830.75-1,928.60

Finding the Fourth Proportional to 3,500.50, 4,830.75 and 1,928.60

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Solution

The fourth proportional to 3,500.50, 4,830.75 and 1,928.60 is: 2,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.50 : 4,830.75 = 1,928.60 : x
  2. Step 2: Convert to fraction form
    3,500.50/4,830.75 = 1,928.60/x
  3. Step 3: Cross multiply
    3,500.50x = 4,830.75 × 1,928.60
  4. Step 4: Simplify right side
    3,500.50x = 9,316,584.45
  5. Step 5: Solve for x
    x = 9,316,584.45/3,500.50
  6. Step 6: Final answer
    x = 2,661.50

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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.