Home / 4,690.64-7,036.72-1,769.20

Finding the Fourth Proportional to 4,690.64, 7,036.72 and 1,769.20

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Solution

The fourth proportional to 4,690.64, 7,036.72 and 1,769.20 is: 2,654.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.64 : 7,036.72 = 1,769.20 : x
  2. Step 2: Convert to fraction form
    4,690.64/7,036.72 = 1,769.20/x
  3. Step 3: Cross multiply
    4,690.64x = 7,036.72 × 1,769.20
  4. Step 4: Simplify right side
    4,690.64x = 12,449,365.02
  5. Step 5: Solve for x
    x = 12,449,365.02/4,690.64
  6. Step 6: Final answer
    x = 2,654.09

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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.