Home / 3,160.18-4,742.32-1,428.82

Finding the Fourth Proportional to 3,160.18, 4,742.32 and 1,428.82

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Solution

The fourth proportional to 3,160.18, 4,742.32 and 1,428.82 is: 2,144.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.18 : 4,742.32 = 1,428.82 : x
  2. Step 2: Convert to fraction form
    3,160.18/4,742.32 = 1,428.82/x
  3. Step 3: Cross multiply
    3,160.18x = 4,742.32 × 1,428.82
  4. Step 4: Simplify right side
    3,160.18x = 6,775,921.66
  5. Step 5: Solve for x
    x = 6,775,921.66/3,160.18
  6. Step 6: Final answer
    x = 2,144.16

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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.