Home / 1,942.60-2,679.74-1,156.50

Finding the Fourth Proportional to 1,942.60, 2,679.74 and 1,156.50

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Solution

The fourth proportional to 1,942.60, 2,679.74 and 1,156.50 is: 1,595.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.60 : 2,679.74 = 1,156.50 : x
  2. Step 2: Convert to fraction form
    1,942.60/2,679.74 = 1,156.50/x
  3. Step 3: Cross multiply
    1,942.60x = 2,679.74 × 1,156.50
  4. Step 4: Simplify right side
    1,942.60x = 3,099,100.13
  5. Step 5: Solve for x
    x = 3,099,100.13/1,942.60
  6. Step 6: Final answer
    x = 1,595.34

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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.