Home / 4,918.20-7,377.30-4,723.80

Finding the Fourth Proportional to 4,918.20, 7,377.30 and 4,723.80

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Solution

The fourth proportional to 4,918.20, 7,377.30 and 4,723.80 is: 7,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.20 : 7,377.30 = 4,723.80 : x
  2. Step 2: Convert to fraction form
    4,918.20/7,377.30 = 4,723.80/x
  3. Step 3: Cross multiply
    4,918.20x = 7,377.30 × 4,723.80
  4. Step 4: Simplify right side
    4,918.20x = 34,848,889.74
  5. Step 5: Solve for x
    x = 34,848,889.74/4,918.20
  6. Step 6: Final answer
    x = 7,085.70

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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.