Home / 5,390.28-8,090.82-4,838.67

Finding the Fourth Proportional to 5,390.28, 8,090.82 and 4,838.67

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Solution

The fourth proportional to 5,390.28, 8,090.82 and 4,838.67 is: 7,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.28 : 8,090.82 = 4,838.67 : x
  2. Step 2: Convert to fraction form
    5,390.28/8,090.82 = 4,838.67/x
  3. Step 3: Cross multiply
    5,390.28x = 8,090.82 × 4,838.67
  4. Step 4: Simplify right side
    5,390.28x = 39,148,808.01
  5. Step 5: Solve for x
    x = 39,148,808.01/5,390.28
  6. Step 6: Final answer
    x = 7,262.85

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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.