Home / 2,952.36-4,429.20-1,221

Finding the Fourth Proportional to 2,952.36, 4,429.20 and 1,221

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Solution

The fourth proportional to 2,952.36, 4,429.20 and 1,221 is: 1,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.36 : 4,429.20 = 1,221 : x
  2. Step 2: Convert to fraction form
    2,952.36/4,429.20 = 1,221/x
  3. Step 3: Cross multiply
    2,952.36x = 4,429.20 × 1,221
  4. Step 4: Simplify right side
    2,952.36x = 5,408,053.20
  5. Step 5: Solve for x
    x = 5,408,053.20/2,952.36
  6. Step 6: Final answer
    x = 1,831.77

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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.