Home / 4,979.42-7,469.08-1,281.64

Finding the Fourth Proportional to 4,979.42, 7,469.08 and 1,281.64

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Solution

The fourth proportional to 4,979.42, 7,469.08 and 1,281.64 is: 1,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.42 : 7,469.08 = 1,281.64 : x
  2. Step 2: Convert to fraction form
    4,979.42/7,469.08 = 1,281.64/x
  3. Step 3: Cross multiply
    4,979.42x = 7,469.08 × 1,281.64
  4. Step 4: Simplify right side
    4,979.42x = 9,572,653.02
  5. Step 5: Solve for x
    x = 9,572,653.02/4,979.42
  6. Step 6: Final answer
    x = 1,922.44

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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.