Home / 5,190.73-7,767.51-2,988.67

Finding the Fourth Proportional to 5,190.73, 7,767.51 and 2,988.67

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Solution

The fourth proportional to 5,190.73, 7,767.51 and 2,988.67 is: 4,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.73 : 7,767.51 = 2,988.67 : x
  2. Step 2: Convert to fraction form
    5,190.73/7,767.51 = 2,988.67/x
  3. Step 3: Cross multiply
    5,190.73x = 7,767.51 × 2,988.67
  4. Step 4: Simplify right side
    5,190.73x = 23,214,524.11
  5. Step 5: Solve for x
    x = 23,214,524.11/5,190.73
  6. Step 6: Final answer
    x = 4,472.30

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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.