Home / 4,775.13-7,143.55-3,955

Finding the Fourth Proportional to 4,775.13, 7,143.55 and 3,955

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Solution

The fourth proportional to 4,775.13, 7,143.55 and 3,955 is: 5,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.13 : 7,143.55 = 3,955 : x
  2. Step 2: Convert to fraction form
    4,775.13/7,143.55 = 3,955/x
  3. Step 3: Cross multiply
    4,775.13x = 7,143.55 × 3,955
  4. Step 4: Simplify right side
    4,775.13x = 28,252,740.25
  5. Step 5: Solve for x
    x = 28,252,740.25/4,775.13
  6. Step 6: Final answer
    x = 5,916.64

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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.