Home / 1,450.34-2,170.47-1,187.30

Finding the Fourth Proportional to 1,450.34, 2,170.47 and 1,187.30

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Solution

The fourth proportional to 1,450.34, 2,170.47 and 1,187.30 is: 1,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.34 : 2,170.47 = 1,187.30 : x
  2. Step 2: Convert to fraction form
    1,450.34/2,170.47 = 1,187.30/x
  3. Step 3: Cross multiply
    1,450.34x = 2,170.47 × 1,187.30
  4. Step 4: Simplify right side
    1,450.34x = 2,576,999.03
  5. Step 5: Solve for x
    x = 2,576,999.03/1,450.34
  6. Step 6: Final answer
    x = 1,776.82

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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.