Home / 1,276.51-1,914.44-454.66

Finding the Fourth Proportional to 1,276.51, 1,914.44 and 454.66

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Solution

The fourth proportional to 1,276.51, 1,914.44 and 454.66 is: 681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.51 : 1,914.44 = 454.66 : x
  2. Step 2: Convert to fraction form
    1,276.51/1,914.44 = 454.66/x
  3. Step 3: Cross multiply
    1,276.51x = 1,914.44 × 454.66
  4. Step 4: Simplify right side
    1,276.51x = 870,423.00
  5. Step 5: Solve for x
    x = 870,423.00/1,276.51
  6. Step 6: Final answer
    x = 681.88

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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.