Home / 3,116.40-4,674.60-1,804.20

Finding the Fourth Proportional to 3,116.40, 4,674.60 and 1,804.20

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Solution

The fourth proportional to 3,116.40, 4,674.60 and 1,804.20 is: 2,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.40 : 4,674.60 = 1,804.20 : x
  2. Step 2: Convert to fraction form
    3,116.40/4,674.60 = 1,804.20/x
  3. Step 3: Cross multiply
    3,116.40x = 4,674.60 × 1,804.20
  4. Step 4: Simplify right side
    3,116.40x = 8,433,913.32
  5. Step 5: Solve for x
    x = 8,433,913.32/3,116.40
  6. Step 6: Final answer
    x = 2,706.30

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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.