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Finding the Fourth Proportional to 1,693.83, 2,541.14 and 913.82

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Solution

The fourth proportional to 1,693.83, 2,541.14 and 913.82 is: 1,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.83 : 2,541.14 = 913.82 : x
  2. Step 2: Convert to fraction form
    1,693.83/2,541.14 = 913.82/x
  3. Step 3: Cross multiply
    1,693.83x = 2,541.14 × 913.82
  4. Step 4: Simplify right side
    1,693.83x = 2,322,135.28
  5. Step 5: Solve for x
    x = 2,322,135.28/1,693.83
  6. Step 6: Final answer
    x = 1,370.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.