Home / 4,979.57-7,464.71-1,690.36

Finding the Fourth Proportional to 4,979.57, 7,464.71 and 1,690.36

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Solution

The fourth proportional to 4,979.57, 7,464.71 and 1,690.36 is: 2,533.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.57 : 7,464.71 = 1,690.36 : x
  2. Step 2: Convert to fraction form
    4,979.57/7,464.71 = 1,690.36/x
  3. Step 3: Cross multiply
    4,979.57x = 7,464.71 × 1,690.36
  4. Step 4: Simplify right side
    4,979.57x = 12,618,047.20
  5. Step 5: Solve for x
    x = 12,618,047.20/4,979.57
  6. Step 6: Final answer
    x = 2,533.96

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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.