Home / 5,451.19-8,176.86-1,555.59

Finding the Fourth Proportional to 5,451.19, 8,176.86 and 1,555.59

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Solution

The fourth proportional to 5,451.19, 8,176.86 and 1,555.59 is: 2,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.19 : 8,176.86 = 1,555.59 : x
  2. Step 2: Convert to fraction form
    5,451.19/8,176.86 = 1,555.59/x
  3. Step 3: Cross multiply
    5,451.19x = 8,176.86 × 1,555.59
  4. Step 4: Simplify right side
    5,451.19x = 12,719,872.31
  5. Step 5: Solve for x
    x = 12,719,872.31/5,451.19
  6. Step 6: Final answer
    x = 2,333.41

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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.