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Finding the Fourth Proportional to 1,354.47, 2,030.97 and 696.07

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Solution

The fourth proportional to 1,354.47, 2,030.97 and 696.07 is: 1,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.47 : 2,030.97 = 696.07 : x
  2. Step 2: Convert to fraction form
    1,354.47/2,030.97 = 696.07/x
  3. Step 3: Cross multiply
    1,354.47x = 2,030.97 × 696.07
  4. Step 4: Simplify right side
    1,354.47x = 1,413,697.29
  5. Step 5: Solve for x
    x = 1,413,697.29/1,354.47
  6. Step 6: Final answer
    x = 1,043.73

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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.