Home / 3,378.74-5,068.67-1,430.96

Finding the Fourth Proportional to 3,378.74, 5,068.67 and 1,430.96

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Solution

The fourth proportional to 3,378.74, 5,068.67 and 1,430.96 is: 2,146.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.74 : 5,068.67 = 1,430.96 : x
  2. Step 2: Convert to fraction form
    3,378.74/5,068.67 = 1,430.96/x
  3. Step 3: Cross multiply
    3,378.74x = 5,068.67 × 1,430.96
  4. Step 4: Simplify right side
    3,378.74x = 7,253,031.53
  5. Step 5: Solve for x
    x = 7,253,031.53/3,378.74
  6. Step 6: Final answer
    x = 2,146.67

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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.