Home / 7,020.41-10,521.51-2,855.58

Finding the Fourth Proportional to 7,020.41, 10,521.51 and 2,855.58

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Solution

The fourth proportional to 7,020.41, 10,521.51 and 2,855.58 is: 4,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.41 : 10,521.51 = 2,855.58 : x
  2. Step 2: Convert to fraction form
    7,020.41/10,521.51 = 2,855.58/x
  3. Step 3: Cross multiply
    7,020.41x = 10,521.51 × 2,855.58
  4. Step 4: Simplify right side
    7,020.41x = 30,045,013.53
  5. Step 5: Solve for x
    x = 30,045,013.53/7,020.41
  6. Step 6: Final answer
    x = 4,279.67

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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.