Home / 5,173.96-7,140.05-2,816.09

Finding the Fourth Proportional to 5,173.96, 7,140.05 and 2,816.09

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Solution

The fourth proportional to 5,173.96, 7,140.05 and 2,816.09 is: 3,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.96 : 7,140.05 = 2,816.09 : x
  2. Step 2: Convert to fraction form
    5,173.96/7,140.05 = 2,816.09/x
  3. Step 3: Cross multiply
    5,173.96x = 7,140.05 × 2,816.09
  4. Step 4: Simplify right side
    5,173.96x = 20,107,030.44
  5. Step 5: Solve for x
    x = 20,107,030.44/5,173.96
  6. Step 6: Final answer
    x = 3,886.20

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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.