Home / 1,267.30-1,747.56-1,017.88

Finding the Fourth Proportional to 1,267.30, 1,747.56 and 1,017.88

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Solution

The fourth proportional to 1,267.30, 1,747.56 and 1,017.88 is: 1,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.30 : 1,747.56 = 1,017.88 : x
  2. Step 2: Convert to fraction form
    1,267.30/1,747.56 = 1,017.88/x
  3. Step 3: Cross multiply
    1,267.30x = 1,747.56 × 1,017.88
  4. Step 4: Simplify right side
    1,267.30x = 1,778,806.37
  5. Step 5: Solve for x
    x = 1,778,806.37/1,267.30
  6. Step 6: Final answer
    x = 1,403.62

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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.