Home / 1,267.07-1,748.58-707.51

Finding the Fourth Proportional to 1,267.07, 1,748.58 and 707.51

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Solution

The fourth proportional to 1,267.07, 1,748.58 and 707.51 is: 976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.07 : 1,748.58 = 707.51 : x
  2. Step 2: Convert to fraction form
    1,267.07/1,748.58 = 707.51/x
  3. Step 3: Cross multiply
    1,267.07x = 1,748.58 × 707.51
  4. Step 4: Simplify right side
    1,267.07x = 1,237,125.56
  5. Step 5: Solve for x
    x = 1,237,125.56/1,267.07
  6. Step 6: Final answer
    x = 976.37

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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.