Home / 1,890.36-2,608.74-1,051.12

Finding the Fourth Proportional to 1,890.36, 2,608.74 and 1,051.12

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Solution

The fourth proportional to 1,890.36, 2,608.74 and 1,051.12 is: 1,450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.36 : 2,608.74 = 1,051.12 : x
  2. Step 2: Convert to fraction form
    1,890.36/2,608.74 = 1,051.12/x
  3. Step 3: Cross multiply
    1,890.36x = 2,608.74 × 1,051.12
  4. Step 4: Simplify right side
    1,890.36x = 2,742,098.79
  5. Step 5: Solve for x
    x = 2,742,098.79/1,890.36
  6. Step 6: Final answer
    x = 1,450.57

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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.