Home / 4,189.70-6,278.87-1,591.22

Finding the Fourth Proportional to 4,189.70, 6,278.87 and 1,591.22

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Solution

The fourth proportional to 4,189.70, 6,278.87 and 1,591.22 is: 2,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.70 : 6,278.87 = 1,591.22 : x
  2. Step 2: Convert to fraction form
    4,189.70/6,278.87 = 1,591.22/x
  3. Step 3: Cross multiply
    4,189.70x = 6,278.87 × 1,591.22
  4. Step 4: Simplify right side
    4,189.70x = 9,991,036.11
  5. Step 5: Solve for x
    x = 9,991,036.11/4,189.70
  6. Step 6: Final answer
    x = 2,384.67

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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.