Home / 4,206.80-6,310.23-1,285.13

Finding the Fourth Proportional to 4,206.80, 6,310.23 and 1,285.13

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Solution

The fourth proportional to 4,206.80, 6,310.23 and 1,285.13 is: 1,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206.80 : 6,310.23 = 1,285.13 : x
  2. Step 2: Convert to fraction form
    4,206.80/6,310.23 = 1,285.13/x
  3. Step 3: Cross multiply
    4,206.80x = 6,310.23 × 1,285.13
  4. Step 4: Simplify right side
    4,206.80x = 8,109,465.88
  5. Step 5: Solve for x
    x = 8,109,465.88/4,206.80
  6. Step 6: Final answer
    x = 1,927.70

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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.