Home / 4,109.72-5,671.02-2,431.76

Finding the Fourth Proportional to 4,109.72, 5,671.02 and 2,431.76

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Solution

The fourth proportional to 4,109.72, 5,671.02 and 2,431.76 is: 3,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.72 : 5,671.02 = 2,431.76 : x
  2. Step 2: Convert to fraction form
    4,109.72/5,671.02 = 2,431.76/x
  3. Step 3: Cross multiply
    4,109.72x = 5,671.02 × 2,431.76
  4. Step 4: Simplify right side
    4,109.72x = 13,790,559.60
  5. Step 5: Solve for x
    x = 13,790,559.60/4,109.72
  6. Step 6: Final answer
    x = 3,355.60

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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.