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Finding the Fourth Proportional to 1,859.84, 2,791.58 and 1,130.84

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Solution

The fourth proportional to 1,859.84, 2,791.58 and 1,130.84 is: 1,697.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.84 : 2,791.58 = 1,130.84 : x
  2. Step 2: Convert to fraction form
    1,859.84/2,791.58 = 1,130.84/x
  3. Step 3: Cross multiply
    1,859.84x = 2,791.58 × 1,130.84
  4. Step 4: Simplify right side
    1,859.84x = 3,156,810.72
  5. Step 5: Solve for x
    x = 3,156,810.72/1,859.84
  6. Step 6: Final answer
    x = 1,697.36

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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.