Home / 4,147.74-6,219.45-1,225.65

Finding the Fourth Proportional to 4,147.74, 6,219.45 and 1,225.65

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Solution

The fourth proportional to 4,147.74, 6,219.45 and 1,225.65 is: 1,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.74 : 6,219.45 = 1,225.65 : x
  2. Step 2: Convert to fraction form
    4,147.74/6,219.45 = 1,225.65/x
  3. Step 3: Cross multiply
    4,147.74x = 6,219.45 × 1,225.65
  4. Step 4: Simplify right side
    4,147.74x = 7,622,868.89
  5. Step 5: Solve for x
    x = 7,622,868.89/4,147.74
  6. Step 6: Final answer
    x = 1,837.84

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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.