Home / 1,929.14-2,663.35-1,267.14

Finding the Fourth Proportional to 1,929.14, 2,663.35 and 1,267.14

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Solution

The fourth proportional to 1,929.14, 2,663.35 and 1,267.14 is: 1,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.14 : 2,663.35 = 1,267.14 : x
  2. Step 2: Convert to fraction form
    1,929.14/2,663.35 = 1,267.14/x
  3. Step 3: Cross multiply
    1,929.14x = 2,663.35 × 1,267.14
  4. Step 4: Simplify right side
    1,929.14x = 3,374,834.15
  5. Step 5: Solve for x
    x = 3,374,834.15/1,929.14
  6. Step 6: Final answer
    x = 1,749.40

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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.