Home / 1,953.68-2,695.32-1,290.92

Finding the Fourth Proportional to 1,953.68, 2,695.32 and 1,290.92

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Solution

The fourth proportional to 1,953.68, 2,695.32 and 1,290.92 is: 1,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.68 : 2,695.32 = 1,290.92 : x
  2. Step 2: Convert to fraction form
    1,953.68/2,695.32 = 1,290.92/x
  3. Step 3: Cross multiply
    1,953.68x = 2,695.32 × 1,290.92
  4. Step 4: Simplify right side
    1,953.68x = 3,479,442.49
  5. Step 5: Solve for x
    x = 3,479,442.49/1,953.68
  6. Step 6: Final answer
    x = 1,780.97

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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.