Home / 1,953.53-2,695.56-1,207.73

Finding the Fourth Proportional to 1,953.53, 2,695.56 and 1,207.73

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Solution

The fourth proportional to 1,953.53, 2,695.56 and 1,207.73 is: 1,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.53 : 2,695.56 = 1,207.73 : x
  2. Step 2: Convert to fraction form
    1,953.53/2,695.56 = 1,207.73/x
  3. Step 3: Cross multiply
    1,953.53x = 2,695.56 × 1,207.73
  4. Step 4: Simplify right side
    1,953.53x = 3,255,495.20
  5. Step 5: Solve for x
    x = 3,255,495.20/1,953.53
  6. Step 6: Final answer
    x = 1,666.47

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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.