Home / 1,951.39-2,690.61-1,577.21

Finding the Fourth Proportional to 1,951.39, 2,690.61 and 1,577.21

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Solution

The fourth proportional to 1,951.39, 2,690.61 and 1,577.21 is: 2,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.39 : 2,690.61 = 1,577.21 : x
  2. Step 2: Convert to fraction form
    1,951.39/2,690.61 = 1,577.21/x
  3. Step 3: Cross multiply
    1,951.39x = 2,690.61 × 1,577.21
  4. Step 4: Simplify right side
    1,951.39x = 4,243,657.00
  5. Step 5: Solve for x
    x = 4,243,657.00/1,951.39
  6. Step 6: Final answer
    x = 2,174.68

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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.