Home / 1,407.21-2,110.80-367.12

Finding the Fourth Proportional to 1,407.21, 2,110.80 and 367.12

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Solution

The fourth proportional to 1,407.21, 2,110.80 and 367.12 is: 550.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.21 : 2,110.80 = 367.12 : x
  2. Step 2: Convert to fraction form
    1,407.21/2,110.80 = 367.12/x
  3. Step 3: Cross multiply
    1,407.21x = 2,110.80 × 367.12
  4. Step 4: Simplify right side
    1,407.21x = 774,916.90
  5. Step 5: Solve for x
    x = 774,916.90/1,407.21
  6. Step 6: Final answer
    x = 550.68

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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.