Home / 4,979.10-7,469.08-1,281.30

Finding the Fourth Proportional to 4,979.10, 7,469.08 and 1,281.30

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Solution

The fourth proportional to 4,979.10, 7,469.08 and 1,281.30 is: 1,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.10 : 7,469.08 = 1,281.30 : x
  2. Step 2: Convert to fraction form
    4,979.10/7,469.08 = 1,281.30/x
  3. Step 3: Cross multiply
    4,979.10x = 7,469.08 × 1,281.30
  4. Step 4: Simplify right side
    4,979.10x = 9,570,100.99
  5. Step 5: Solve for x
    x = 9,570,100.99/4,979.10
  6. Step 6: Final answer
    x = 1,922.05

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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.