Home / 4,219.40-6,329.10-1,297.70

Finding the Fourth Proportional to 4,219.40, 6,329.10 and 1,297.70

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Solution

The fourth proportional to 4,219.40, 6,329.10 and 1,297.70 is: 1,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.40 : 6,329.10 = 1,297.70 : x
  2. Step 2: Convert to fraction form
    4,219.40/6,329.10 = 1,297.70/x
  3. Step 3: Cross multiply
    4,219.40x = 6,329.10 × 1,297.70
  4. Step 4: Simplify right side
    4,219.40x = 8,213,273.07
  5. Step 5: Solve for x
    x = 8,213,273.07/4,219.40
  6. Step 6: Final answer
    x = 1,946.55

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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.