Home / 5,419.22-8,128.96-1,671.08

Finding the Fourth Proportional to 5,419.22, 8,128.96 and 1,671.08

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Solution

The fourth proportional to 5,419.22, 8,128.96 and 1,671.08 is: 2,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.22 : 8,128.96 = 1,671.08 : x
  2. Step 2: Convert to fraction form
    5,419.22/8,128.96 = 1,671.08/x
  3. Step 3: Cross multiply
    5,419.22x = 8,128.96 × 1,671.08
  4. Step 4: Simplify right side
    5,419.22x = 13,584,142.48
  5. Step 5: Solve for x
    x = 13,584,142.48/5,419.22
  6. Step 6: Final answer
    x = 2,506.66

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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.