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Finding the Fourth Proportional to 1,693.47, 2,335.73 and 1,134.57

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Solution

The fourth proportional to 1,693.47, 2,335.73 and 1,134.57 is: 1,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.47 : 2,335.73 = 1,134.57 : x
  2. Step 2: Convert to fraction form
    1,693.47/2,335.73 = 1,134.57/x
  3. Step 3: Cross multiply
    1,693.47x = 2,335.73 × 1,134.57
  4. Step 4: Simplify right side
    1,693.47x = 2,650,043.51
  5. Step 5: Solve for x
    x = 2,650,043.51/1,693.47
  6. Step 6: Final answer
    x = 1,564.86

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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.