Home / 3,132.23-4,321.94-1,805.67

Finding the Fourth Proportional to 3,132.23, 4,321.94 and 1,805.67

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Solution

The fourth proportional to 3,132.23, 4,321.94 and 1,805.67 is: 2,491.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.23 : 4,321.94 = 1,805.67 : x
  2. Step 2: Convert to fraction form
    3,132.23/4,321.94 = 1,805.67/x
  3. Step 3: Cross multiply
    3,132.23x = 4,321.94 × 1,805.67
  4. Step 4: Simplify right side
    3,132.23x = 7,803,988.37
  5. Step 5: Solve for x
    x = 7,803,988.37/3,132.23
  6. Step 6: Final answer
    x = 2,491.52

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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.