Home / 2,119.92-2,924.12-1,333.28

Finding the Fourth Proportional to 2,119.92, 2,924.12 and 1,333.28

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Solution

The fourth proportional to 2,119.92, 2,924.12 and 1,333.28 is: 1,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.92 : 2,924.12 = 1,333.28 : x
  2. Step 2: Convert to fraction form
    2,119.92/2,924.12 = 1,333.28/x
  3. Step 3: Cross multiply
    2,119.92x = 2,924.12 × 1,333.28
  4. Step 4: Simplify right side
    2,119.92x = 3,898,670.71
  5. Step 5: Solve for x
    x = 3,898,670.71/2,119.92
  6. Step 6: Final answer
    x = 1,839.07

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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.