Home / 4,285.70-6,428.55-1,364.30

Finding the Fourth Proportional to 4,285.70, 6,428.55 and 1,364.30

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Solution

The fourth proportional to 4,285.70, 6,428.55 and 1,364.30 is: 2,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.70 : 6,428.55 = 1,364.30 : x
  2. Step 2: Convert to fraction form
    4,285.70/6,428.55 = 1,364.30/x
  3. Step 3: Cross multiply
    4,285.70x = 6,428.55 × 1,364.30
  4. Step 4: Simplify right side
    4,285.70x = 8,770,470.77
  5. Step 5: Solve for x
    x = 8,770,470.77/4,285.70
  6. Step 6: Final answer
    x = 2,046.45

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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.