Home / 1,267.49-1,749.13-707.95

Finding the Fourth Proportional to 1,267.49, 1,749.13 and 707.95

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Solution

The fourth proportional to 1,267.49, 1,749.13 and 707.95 is: 976.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.49 : 1,749.13 = 707.95 : x
  2. Step 2: Convert to fraction form
    1,267.49/1,749.13 = 707.95/x
  3. Step 3: Cross multiply
    1,267.49x = 1,749.13 × 707.95
  4. Step 4: Simplify right side
    1,267.49x = 1,238,296.58
  5. Step 5: Solve for x
    x = 1,238,296.58/1,267.49
  6. Step 6: Final answer
    x = 976.97

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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.