Home / 1,336.85-2,005.55-471.05

Finding the Fourth Proportional to 1,336.85, 2,005.55 and 471.05

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Solution

The fourth proportional to 1,336.85, 2,005.55 and 471.05 is: 706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.85 : 2,005.55 = 471.05 : x
  2. Step 2: Convert to fraction form
    1,336.85/2,005.55 = 471.05/x
  3. Step 3: Cross multiply
    1,336.85x = 2,005.55 × 471.05
  4. Step 4: Simplify right side
    1,336.85x = 944,714.33
  5. Step 5: Solve for x
    x = 944,714.33/1,336.85
  6. Step 6: Final answer
    x = 706.67

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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.