Home / 3,119.84-4,674.96-1,581.92

Finding the Fourth Proportional to 3,119.84, 4,674.96 and 1,581.92

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Solution

The fourth proportional to 3,119.84, 4,674.96 and 1,581.92 is: 2,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.84 : 4,674.96 = 1,581.92 : x
  2. Step 2: Convert to fraction form
    3,119.84/4,674.96 = 1,581.92/x
  3. Step 3: Cross multiply
    3,119.84x = 4,674.96 × 1,581.92
  4. Step 4: Simplify right side
    3,119.84x = 7,395,412.72
  5. Step 5: Solve for x
    x = 7,395,412.72/3,119.84
  6. Step 6: Final answer
    x = 2,370.45

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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.