Home / 4,256.12-6,385.80-1,946

Finding the Fourth Proportional to 4,256.12, 6,385.80 and 1,946

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Solution

The fourth proportional to 4,256.12, 6,385.80 and 1,946 is: 2,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.12 : 6,385.80 = 1,946 : x
  2. Step 2: Convert to fraction form
    4,256.12/6,385.80 = 1,946/x
  3. Step 3: Cross multiply
    4,256.12x = 6,385.80 × 1,946
  4. Step 4: Simplify right side
    4,256.12x = 12,426,766.80
  5. Step 5: Solve for x
    x = 12,426,766.80/4,256.12
  6. Step 6: Final answer
    x = 2,919.74

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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.