Home / 5,175.11-7,140.48-2,936.45

Finding the Fourth Proportional to 5,175.11, 7,140.48 and 2,936.45

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Solution

The fourth proportional to 5,175.11, 7,140.48 and 2,936.45 is: 4,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.11 : 7,140.48 = 2,936.45 : x
  2. Step 2: Convert to fraction form
    5,175.11/7,140.48 = 2,936.45/x
  3. Step 3: Cross multiply
    5,175.11x = 7,140.48 × 2,936.45
  4. Step 4: Simplify right side
    5,175.11x = 20,967,662.50
  5. Step 5: Solve for x
    x = 20,967,662.50/5,175.11
  6. Step 6: Final answer
    x = 4,051.64

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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.