Home / 3,154.34-4,747.97-2,678.67

Finding the Fourth Proportional to 3,154.34, 4,747.97 and 2,678.67

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Solution

The fourth proportional to 3,154.34, 4,747.97 and 2,678.67 is: 4,031.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.34 : 4,747.97 = 2,678.67 : x
  2. Step 2: Convert to fraction form
    3,154.34/4,747.97 = 2,678.67/x
  3. Step 3: Cross multiply
    3,154.34x = 4,747.97 × 2,678.67
  4. Step 4: Simplify right side
    3,154.34x = 12,718,231.41
  5. Step 5: Solve for x
    x = 12,718,231.41/3,154.34
  6. Step 6: Final answer
    x = 4,031.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.