Home / 4,979.40-7,469.06-2,788.10

Finding the Fourth Proportional to 4,979.40, 7,469.06 and 2,788.10

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Solution

The fourth proportional to 4,979.40, 7,469.06 and 2,788.10 is: 4,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.40 : 7,469.06 = 2,788.10 : x
  2. Step 2: Convert to fraction form
    4,979.40/7,469.06 = 2,788.10/x
  3. Step 3: Cross multiply
    4,979.40x = 7,469.06 × 2,788.10
  4. Step 4: Simplify right side
    4,979.40x = 20,824,486.19
  5. Step 5: Solve for x
    x = 20,824,486.19/4,979.40
  6. Step 6: Final answer
    x = 4,182.13

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1.5x scale

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.