Home / 5,012.20-7,518.75-1,314.37

Finding the Fourth Proportional to 5,012.20, 7,518.75 and 1,314.37

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Solution

The fourth proportional to 5,012.20, 7,518.75 and 1,314.37 is: 1,971.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.20 : 7,518.75 = 1,314.37 : x
  2. Step 2: Convert to fraction form
    5,012.20/7,518.75 = 1,314.37/x
  3. Step 3: Cross multiply
    5,012.20x = 7,518.75 × 1,314.37
  4. Step 4: Simplify right side
    5,012.20x = 9,882,419.44
  5. Step 5: Solve for x
    x = 9,882,419.44/5,012.20
  6. Step 6: Final answer
    x = 1,971.67

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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.