Home / 1,302.12-1,953.89-480.27

Finding the Fourth Proportional to 1,302.12, 1,953.89 and 480.27

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Solution

The fourth proportional to 1,302.12, 1,953.89 and 480.27 is: 720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.12 : 1,953.89 = 480.27 : x
  2. Step 2: Convert to fraction form
    1,302.12/1,953.89 = 480.27/x
  3. Step 3: Cross multiply
    1,302.12x = 1,953.89 × 480.27
  4. Step 4: Simplify right side
    1,302.12x = 938,392.35
  5. Step 5: Solve for x
    x = 938,392.35/1,302.12
  6. Step 6: Final answer
    x = 720.67

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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.