Home / 1,438.21-2,150.55-1,026.07

Finding the Fourth Proportional to 1,438.21, 2,150.55 and 1,026.07

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Solution

The fourth proportional to 1,438.21, 2,150.55 and 1,026.07 is: 1,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438.21 : 2,150.55 = 1,026.07 : x
  2. Step 2: Convert to fraction form
    1,438.21/2,150.55 = 1,026.07/x
  3. Step 3: Cross multiply
    1,438.21x = 2,150.55 × 1,026.07
  4. Step 4: Simplify right side
    1,438.21x = 2,206,609.46
  5. Step 5: Solve for x
    x = 2,206,609.46/1,438.21
  6. Step 6: Final answer
    x = 1,534.28

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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.