Home / 5,190.13-7,783.98-1,491.67

Finding the Fourth Proportional to 5,190.13, 7,783.98 and 1,491.67

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Solution

The fourth proportional to 5,190.13, 7,783.98 and 1,491.67 is: 2,237.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.13 : 7,783.98 = 1,491.67 : x
  2. Step 2: Convert to fraction form
    5,190.13/7,783.98 = 1,491.67/x
  3. Step 3: Cross multiply
    5,190.13x = 7,783.98 × 1,491.67
  4. Step 4: Simplify right side
    5,190.13x = 11,611,129.45
  5. Step 5: Solve for x
    x = 11,611,129.45/5,190.13
  6. Step 6: Final answer
    x = 2,237.16

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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.