Home / 1,423.44-1,963.80-1,051.31

Finding the Fourth Proportional to 1,423.44, 1,963.80 and 1,051.31

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Solution

The fourth proportional to 1,423.44, 1,963.80 and 1,051.31 is: 1,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.44 : 1,963.80 = 1,051.31 : x
  2. Step 2: Convert to fraction form
    1,423.44/1,963.80 = 1,051.31/x
  3. Step 3: Cross multiply
    1,423.44x = 1,963.80 × 1,051.31
  4. Step 4: Simplify right side
    1,423.44x = 2,064,562.58
  5. Step 5: Solve for x
    x = 2,064,562.58/1,423.44
  6. Step 6: Final answer
    x = 1,450.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.