Home / 4,197.70-6,297.90-1,276.30

Finding the Fourth Proportional to 4,197.70, 6,297.90 and 1,276.30

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Solution

The fourth proportional to 4,197.70, 6,297.90 and 1,276.30 is: 1,914.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,197.70 : 6,297.90 = 1,276.30 : x
  2. Step 2: Convert to fraction form
    4,197.70/6,297.90 = 1,276.30/x
  3. Step 3: Cross multiply
    4,197.70x = 6,297.90 × 1,276.30
  4. Step 4: Simplify right side
    4,197.70x = 8,038,009.77
  5. Step 5: Solve for x
    x = 8,038,009.77/4,197.70
  6. Step 6: Final answer
    x = 1,914.86

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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.