Home / 1,406.50-2,109.56-366.57

Finding the Fourth Proportional to 1,406.50, 2,109.56 and 366.57

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Solution

The fourth proportional to 1,406.50, 2,109.56 and 366.57 is: 549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.50 : 2,109.56 = 366.57 : x
  2. Step 2: Convert to fraction form
    1,406.50/2,109.56 = 366.57/x
  3. Step 3: Cross multiply
    1,406.50x = 2,109.56 × 366.57
  4. Step 4: Simplify right side
    1,406.50x = 773,299.58
  5. Step 5: Solve for x
    x = 773,299.58/1,406.50
  6. Step 6: Final answer
    x = 549.81

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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.