Home / 3,118.57-4,677.79-1,804.30

Finding the Fourth Proportional to 3,118.57, 4,677.79 and 1,804.30

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Solution

The fourth proportional to 3,118.57, 4,677.79 and 1,804.30 is: 2,706.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.57 : 4,677.79 = 1,804.30 : x
  2. Step 2: Convert to fraction form
    3,118.57/4,677.79 = 1,804.30/x
  3. Step 3: Cross multiply
    3,118.57x = 4,677.79 × 1,804.30
  4. Step 4: Simplify right side
    3,118.57x = 8,440,136.50
  5. Step 5: Solve for x
    x = 8,440,136.50/3,118.57
  6. Step 6: Final answer
    x = 2,706.41

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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.