Home / 7,020.28-10,521.33-2,855.44

Finding the Fourth Proportional to 7,020.28, 10,521.33 and 2,855.44

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Solution

The fourth proportional to 7,020.28, 10,521.33 and 2,855.44 is: 4,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.28 : 10,521.33 = 2,855.44 : x
  2. Step 2: Convert to fraction form
    7,020.28/10,521.33 = 2,855.44/x
  3. Step 3: Cross multiply
    7,020.28x = 10,521.33 × 2,855.44
  4. Step 4: Simplify right side
    7,020.28x = 30,043,026.54
  5. Step 5: Solve for x
    x = 30,043,026.54/7,020.28
  6. Step 6: Final answer
    x = 4,279.46

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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.