Home / 3,391.34-4,680.69-1,899.92

Finding the Fourth Proportional to 3,391.34, 4,680.69 and 1,899.92

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Solution

The fourth proportional to 3,391.34, 4,680.69 and 1,899.92 is: 2,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.34 : 4,680.69 = 1,899.92 : x
  2. Step 2: Convert to fraction form
    3,391.34/4,680.69 = 1,899.92/x
  3. Step 3: Cross multiply
    3,391.34x = 4,680.69 × 1,899.92
  4. Step 4: Simplify right side
    3,391.34x = 8,892,941.12
  5. Step 5: Solve for x
    x = 8,892,941.12/3,391.34
  6. Step 6: Final answer
    x = 2,622.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.