Home / 1,455.64-2,186.26-1,247.88

Finding the Fourth Proportional to 1,455.64, 2,186.26 and 1,247.88

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Solution

The fourth proportional to 1,455.64, 2,186.26 and 1,247.88 is: 1,874.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.64 : 2,186.26 = 1,247.88 : x
  2. Step 2: Convert to fraction form
    1,455.64/2,186.26 = 1,247.88/x
  3. Step 3: Cross multiply
    1,455.64x = 2,186.26 × 1,247.88
  4. Step 4: Simplify right side
    1,455.64x = 2,728,190.13
  5. Step 5: Solve for x
    x = 2,728,190.13/1,455.64
  6. Step 6: Final answer
    x = 1,874.22

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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.