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Finding the Fourth Proportional to 3,358.86, 5,040.72 and 1,900.86

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Solution

The fourth proportional to 3,358.86, 5,040.72 and 1,900.86 is: 2,852.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.86 : 5,040.72 = 1,900.86 : x
  2. Step 2: Convert to fraction form
    3,358.86/5,040.72 = 1,900.86/x
  3. Step 3: Cross multiply
    3,358.86x = 5,040.72 × 1,900.86
  4. Step 4: Simplify right side
    3,358.86x = 9,581,703.02
  5. Step 5: Solve for x
    x = 9,581,703.02/3,358.86
  6. Step 6: Final answer
    x = 2,852.67

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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.