Home / 4,210.70-6,314.94-1,289.03

Finding the Fourth Proportional to 4,210.70, 6,314.94 and 1,289.03

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Solution

The fourth proportional to 4,210.70, 6,314.94 and 1,289.03 is: 1,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.70 : 6,314.94 = 1,289.03 : x
  2. Step 2: Convert to fraction form
    4,210.70/6,314.94 = 1,289.03/x
  3. Step 3: Cross multiply
    4,210.70x = 6,314.94 × 1,289.03
  4. Step 4: Simplify right side
    4,210.70x = 8,140,115.53
  5. Step 5: Solve for x
    x = 8,140,115.53/4,210.70
  6. Step 6: Final answer
    x = 1,933.20

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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.