Home / 4,680.45-7,030-2,928.56

Finding the Fourth Proportional to 4,680.45, 7,030 and 2,928.56

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Solution

The fourth proportional to 4,680.45, 7,030 and 2,928.56 is: 4,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.45 : 7,030 = 2,928.56 : x
  2. Step 2: Convert to fraction form
    4,680.45/7,030 = 2,928.56/x
  3. Step 3: Cross multiply
    4,680.45x = 7,030 × 2,928.56
  4. Step 4: Simplify right side
    4,680.45x = 20,587,776.80
  5. Step 5: Solve for x
    x = 20,587,776.80/4,680.45
  6. Step 6: Final answer
    x = 4,398.67

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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.