Home / 5,015.77-6,921.61-2,777.58

Finding the Fourth Proportional to 5,015.77, 6,921.61 and 2,777.58

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Solution

The fourth proportional to 5,015.77, 6,921.61 and 2,777.58 is: 3,832.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.77 : 6,921.61 = 2,777.58 : x
  2. Step 2: Convert to fraction form
    5,015.77/6,921.61 = 2,777.58/x
  3. Step 3: Cross multiply
    5,015.77x = 6,921.61 × 2,777.58
  4. Step 4: Simplify right side
    5,015.77x = 19,225,318.56
  5. Step 5: Solve for x
    x = 19,225,318.56/5,015.77
  6. Step 6: Final answer
    x = 3,832.98

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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.