Home / 1,267.32-1,888.90-1,243.02

Finding the Fourth Proportional to 1,267.32, 1,888.90 and 1,243.02

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Solution

The fourth proportional to 1,267.32, 1,888.90 and 1,243.02 is: 1,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.32 : 1,888.90 = 1,243.02 : x
  2. Step 2: Convert to fraction form
    1,267.32/1,888.90 = 1,243.02/x
  3. Step 3: Cross multiply
    1,267.32x = 1,888.90 × 1,243.02
  4. Step 4: Simplify right side
    1,267.32x = 2,347,940.48
  5. Step 5: Solve for x
    x = 2,347,940.48/1,267.32
  6. Step 6: Final answer
    x = 1,852.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.