Home / 5,015.28-6,920.79-2,777.03

Finding the Fourth Proportional to 5,015.28, 6,920.79 and 2,777.03

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Solution

The fourth proportional to 5,015.28, 6,920.79 and 2,777.03 is: 3,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.28 : 6,920.79 = 2,777.03 : x
  2. Step 2: Convert to fraction form
    5,015.28/6,920.79 = 2,777.03/x
  3. Step 3: Cross multiply
    5,015.28x = 6,920.79 × 2,777.03
  4. Step 4: Simplify right side
    5,015.28x = 19,219,241.45
  5. Step 5: Solve for x
    x = 19,219,241.45/5,015.28
  6. Step 6: Final answer
    x = 3,832.14

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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.