Home / 4,285.90-6,428.58-1,366.30

Finding the Fourth Proportional to 4,285.90, 6,428.58 and 1,366.30

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Solution

The fourth proportional to 4,285.90, 6,428.58 and 1,366.30 is: 2,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.90 : 6,428.58 = 1,366.30 : x
  2. Step 2: Convert to fraction form
    4,285.90/6,428.58 = 1,366.30/x
  3. Step 3: Cross multiply
    4,285.90x = 6,428.58 × 1,366.30
  4. Step 4: Simplify right side
    4,285.90x = 8,783,368.85
  5. Step 5: Solve for x
    x = 8,783,368.85/4,285.90
  6. Step 6: Final answer
    x = 2,049.36

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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.