Home / 5,690.34-8,530.62-2,178.36

Finding the Fourth Proportional to 5,690.34, 8,530.62 and 2,178.36

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Solution

The fourth proportional to 5,690.34, 8,530.62 and 2,178.36 is: 3,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.34 : 8,530.62 = 2,178.36 : x
  2. Step 2: Convert to fraction form
    5,690.34/8,530.62 = 2,178.36/x
  3. Step 3: Cross multiply
    5,690.34x = 8,530.62 × 2,178.36
  4. Step 4: Simplify right side
    5,690.34x = 18,582,761.38
  5. Step 5: Solve for x
    x = 18,582,761.38/5,690.34
  6. Step 6: Final answer
    x = 3,265.67

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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.