Home / 5,015.28-6,921.33-2,777.40

Finding the Fourth Proportional to 5,015.28, 6,921.33 and 2,777.40

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Solution

The fourth proportional to 5,015.28, 6,921.33 and 2,777.40 is: 3,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.28 : 6,921.33 = 2,777.40 : x
  2. Step 2: Convert to fraction form
    5,015.28/6,921.33 = 2,777.40/x
  3. Step 3: Cross multiply
    5,015.28x = 6,921.33 × 2,777.40
  4. Step 4: Simplify right side
    5,015.28x = 19,223,301.94
  5. Step 5: Solve for x
    x = 19,223,301.94/5,015.28
  6. Step 6: Final answer
    x = 3,832.95

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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.