Home / 1,811.06-2,499.36-1,147.67

Finding the Fourth Proportional to 1,811.06, 2,499.36 and 1,147.67

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Solution

The fourth proportional to 1,811.06, 2,499.36 and 1,147.67 is: 1,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.06 : 2,499.36 = 1,147.67 : x
  2. Step 2: Convert to fraction form
    1,811.06/2,499.36 = 1,147.67/x
  3. Step 3: Cross multiply
    1,811.06x = 2,499.36 × 1,147.67
  4. Step 4: Simplify right side
    1,811.06x = 2,868,440.49
  5. Step 5: Solve for x
    x = 2,868,440.49/1,811.06
  6. Step 6: Final answer
    x = 1,583.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.