Home / 1,951.64-2,692.58-1,165.40

Finding the Fourth Proportional to 1,951.64, 2,692.58 and 1,165.40

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Solution

The fourth proportional to 1,951.64, 2,692.58 and 1,165.40 is: 1,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.64 : 2,692.58 = 1,165.40 : x
  2. Step 2: Convert to fraction form
    1,951.64/2,692.58 = 1,165.40/x
  3. Step 3: Cross multiply
    1,951.64x = 2,692.58 × 1,165.40
  4. Step 4: Simplify right side
    1,951.64x = 3,137,932.73
  5. Step 5: Solve for x
    x = 3,137,932.73/1,951.64
  6. Step 6: Final answer
    x = 1,607.84

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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.