Home / 5,690.67-7,853.16-3,172.94

Finding the Fourth Proportional to 5,690.67, 7,853.16 and 3,172.94

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Solution

The fourth proportional to 5,690.67, 7,853.16 and 3,172.94 is: 4,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.67 : 7,853.16 = 3,172.94 : x
  2. Step 2: Convert to fraction form
    5,690.67/7,853.16 = 3,172.94/x
  3. Step 3: Cross multiply
    5,690.67x = 7,853.16 × 3,172.94
  4. Step 4: Simplify right side
    5,690.67x = 24,917,550.36
  5. Step 5: Solve for x
    x = 24,917,550.36/5,690.67
  6. Step 6: Final answer
    x = 4,378.67

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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.