Home / 5,143.37-7,097.87-2,905.27

Finding the Fourth Proportional to 5,143.37, 7,097.87 and 2,905.27

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Solution

The fourth proportional to 5,143.37, 7,097.87 and 2,905.27 is: 4,009.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.37 : 7,097.87 = 2,905.27 : x
  2. Step 2: Convert to fraction form
    5,143.37/7,097.87 = 2,905.27/x
  3. Step 3: Cross multiply
    5,143.37x = 7,097.87 × 2,905.27
  4. Step 4: Simplify right side
    5,143.37x = 20,621,228.77
  5. Step 5: Solve for x
    x = 20,621,228.77/5,143.37
  6. Step 6: Final answer
    x = 4,009.28

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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.