Home / 3,500.43-4,830.55-1,928.50

Finding the Fourth Proportional to 3,500.43, 4,830.55 and 1,928.50

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Solution

The fourth proportional to 3,500.43, 4,830.55 and 1,928.50 is: 2,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.43 : 4,830.55 = 1,928.50 : x
  2. Step 2: Convert to fraction form
    3,500.43/4,830.55 = 1,928.50/x
  3. Step 3: Cross multiply
    3,500.43x = 4,830.55 × 1,928.50
  4. Step 4: Simplify right side
    3,500.43x = 9,315,715.68
  5. Step 5: Solve for x
    x = 9,315,715.68/3,500.43
  6. Step 6: Final answer
    x = 2,661.31

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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.