Home / 5,696.60-7,856.39-3,706.43

Finding the Fourth Proportional to 5,696.60, 7,856.39 and 3,706.43

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Solution

The fourth proportional to 5,696.60, 7,856.39 and 3,706.43 is: 5,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,696.60 : 7,856.39 = 3,706.43 : x
  2. Step 2: Convert to fraction form
    5,696.60/7,856.39 = 3,706.43/x
  3. Step 3: Cross multiply
    5,696.60x = 7,856.39 × 3,706.43
  4. Step 4: Simplify right side
    5,696.60x = 29,119,129.57
  5. Step 5: Solve for x
    x = 29,119,129.57/5,696.60
  6. Step 6: Final answer
    x = 5,111.67

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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.