Home / 3,394.28-5,091.36-1,661.70

Finding the Fourth Proportional to 3,394.28, 5,091.36 and 1,661.70

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Solution

The fourth proportional to 3,394.28, 5,091.36 and 1,661.70 is: 2,492.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.28 : 5,091.36 = 1,661.70 : x
  2. Step 2: Convert to fraction form
    3,394.28/5,091.36 = 1,661.70/x
  3. Step 3: Cross multiply
    3,394.28x = 5,091.36 × 1,661.70
  4. Step 4: Simplify right side
    3,394.28x = 8,460,312.91
  5. Step 5: Solve for x
    x = 8,460,312.91/3,394.28
  6. Step 6: Final answer
    x = 2,492.52

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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.