Home / 4,160.56-5,742.12-2,900.80

Finding the Fourth Proportional to 4,160.56, 5,742.12 and 2,900.80

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Solution

The fourth proportional to 4,160.56, 5,742.12 and 2,900.80 is: 4,003.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.56 : 5,742.12 = 2,900.80 : x
  2. Step 2: Convert to fraction form
    4,160.56/5,742.12 = 2,900.80/x
  3. Step 3: Cross multiply
    4,160.56x = 5,742.12 × 2,900.80
  4. Step 4: Simplify right side
    4,160.56x = 16,656,741.70
  5. Step 5: Solve for x
    x = 16,656,741.70/4,160.56
  6. Step 6: Final answer
    x = 4,003.49

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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.