Home / 1,953.29-2,696.78-1,207.67

Finding the Fourth Proportional to 1,953.29, 2,696.78 and 1,207.67

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Solution

The fourth proportional to 1,953.29, 2,696.78 and 1,207.67 is: 1,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.29 : 2,696.78 = 1,207.67 : x
  2. Step 2: Convert to fraction form
    1,953.29/2,696.78 = 1,207.67/x
  3. Step 3: Cross multiply
    1,953.29x = 2,696.78 × 1,207.67
  4. Step 4: Simplify right side
    1,953.29x = 3,256,830.06
  5. Step 5: Solve for x
    x = 3,256,830.06/1,953.29
  6. Step 6: Final answer
    x = 1,667.36

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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.