Home / 3,500.15-4,830.16-1,928.21

Finding the Fourth Proportional to 3,500.15, 4,830.16 and 1,928.21

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Solution

The fourth proportional to 3,500.15, 4,830.16 and 1,928.21 is: 2,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.15 : 4,830.16 = 1,928.21 : x
  2. Step 2: Convert to fraction form
    3,500.15/4,830.16 = 1,928.21/x
  3. Step 3: Cross multiply
    3,500.15x = 4,830.16 × 1,928.21
  4. Step 4: Simplify right side
    3,500.15x = 9,313,562.81
  5. Step 5: Solve for x
    x = 9,313,562.81/3,500.15
  6. Step 6: Final answer
    x = 2,660.90

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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.