Home / 5,179.10-7,143.54-5,007.68

Finding the Fourth Proportional to 5,179.10, 7,143.54 and 5,007.68

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Solution

The fourth proportional to 5,179.10, 7,143.54 and 5,007.68 is: 6,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.10 : 7,143.54 = 5,007.68 : x
  2. Step 2: Convert to fraction form
    5,179.10/7,143.54 = 5,007.68/x
  3. Step 3: Cross multiply
    5,179.10x = 7,143.54 × 5,007.68
  4. Step 4: Simplify right side
    5,179.10x = 35,772,562.39
  5. Step 5: Solve for x
    x = 35,772,562.39/5,179.10
  6. Step 6: Final answer
    x = 6,907.10

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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.