Home / 3,318.56-4,975.28-1,586.88

Finding the Fourth Proportional to 3,318.56, 4,975.28 and 1,586.88

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Solution

The fourth proportional to 3,318.56, 4,975.28 and 1,586.88 is: 2,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.56 : 4,975.28 = 1,586.88 : x
  2. Step 2: Convert to fraction form
    3,318.56/4,975.28 = 1,586.88/x
  3. Step 3: Cross multiply
    3,318.56x = 4,975.28 × 1,586.88
  4. Step 4: Simplify right side
    3,318.56x = 7,895,172.33
  5. Step 5: Solve for x
    x = 7,895,172.33/3,318.56
  6. Step 6: Final answer
    x = 2,379.10

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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.