Home / 4,979.21-7,423.67-4,849.36

Finding the Fourth Proportional to 4,979.21, 7,423.67 and 4,849.36

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Solution

The fourth proportional to 4,979.21, 7,423.67 and 4,849.36 is: 7,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.21 : 7,423.67 = 4,849.36 : x
  2. Step 2: Convert to fraction form
    4,979.21/7,423.67 = 4,849.36/x
  3. Step 3: Cross multiply
    4,979.21x = 7,423.67 × 4,849.36
  4. Step 4: Simplify right side
    4,979.21x = 36,000,041.92
  5. Step 5: Solve for x
    x = 36,000,041.92/4,979.21
  6. Step 6: Final answer
    x = 7,230.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.