Home / 4,147.76-6,219.78-1,225.04

Finding the Fourth Proportional to 4,147.76, 6,219.78 and 1,225.04

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Solution

The fourth proportional to 4,147.76, 6,219.78 and 1,225.04 is: 1,837.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.76 : 6,219.78 = 1,225.04 : x
  2. Step 2: Convert to fraction form
    4,147.76/6,219.78 = 1,225.04/x
  3. Step 3: Cross multiply
    4,147.76x = 6,219.78 × 1,225.04
  4. Step 4: Simplify right side
    4,147.76x = 7,619,479.29
  5. Step 5: Solve for x
    x = 7,619,479.29/4,147.76
  6. Step 6: Final answer
    x = 1,837.01

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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.