Home / 2,912.58-4,364.74-1,680.30

Finding the Fourth Proportional to 2,912.58, 4,364.74 and 1,680.30

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Solution

The fourth proportional to 2,912.58, 4,364.74 and 1,680.30 is: 2,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.58 : 4,364.74 = 1,680.30 : x
  2. Step 2: Convert to fraction form
    2,912.58/4,364.74 = 1,680.30/x
  3. Step 3: Cross multiply
    2,912.58x = 4,364.74 × 1,680.30
  4. Step 4: Simplify right side
    2,912.58x = 7,334,072.62
  5. Step 5: Solve for x
    x = 7,334,072.62/2,912.58
  6. Step 6: Final answer
    x = 2,518.07

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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.