Home / 3,119.47-4,304.87-1,722.22

Finding the Fourth Proportional to 3,119.47, 4,304.87 and 1,722.22

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Solution

The fourth proportional to 3,119.47, 4,304.87 and 1,722.22 is: 2,376.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.47 : 4,304.87 = 1,722.22 : x
  2. Step 2: Convert to fraction form
    3,119.47/4,304.87 = 1,722.22/x
  3. Step 3: Cross multiply
    3,119.47x = 4,304.87 × 1,722.22
  4. Step 4: Simplify right side
    3,119.47x = 7,413,937.52
  5. Step 5: Solve for x
    x = 7,413,937.52/3,119.47
  6. Step 6: Final answer
    x = 2,376.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.