Home / 4,206.68-6,310.95-1,285.21

Finding the Fourth Proportional to 4,206.68, 6,310.95 and 1,285.21

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Solution

The fourth proportional to 4,206.68, 6,310.95 and 1,285.21 is: 1,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206.68 : 6,310.95 = 1,285.21 : x
  2. Step 2: Convert to fraction form
    4,206.68/6,310.95 = 1,285.21/x
  3. Step 3: Cross multiply
    4,206.68x = 6,310.95 × 1,285.21
  4. Step 4: Simplify right side
    4,206.68x = 8,110,899.12
  5. Step 5: Solve for x
    x = 8,110,899.12/4,206.68
  6. Step 6: Final answer
    x = 1,928.10

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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.