Home / 4,667.20-6,999.90-1,379.56

Finding the Fourth Proportional to 4,667.20, 6,999.90 and 1,379.56

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Solution

The fourth proportional to 4,667.20, 6,999.90 and 1,379.56 is: 2,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,667.20 : 6,999.90 = 1,379.56 : x
  2. Step 2: Convert to fraction form
    4,667.20/6,999.90 = 1,379.56/x
  3. Step 3: Cross multiply
    4,667.20x = 6,999.90 × 1,379.56
  4. Step 4: Simplify right side
    4,667.20x = 9,656,782.04
  5. Step 5: Solve for x
    x = 9,656,782.04/4,667.20
  6. Step 6: Final answer
    x = 2,069.07

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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.