Home / 2,655.46-3,984-1,357.84

Finding the Fourth Proportional to 2,655.46, 3,984 and 1,357.84

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Solution

The fourth proportional to 2,655.46, 3,984 and 1,357.84 is: 2,037.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.46 : 3,984 = 1,357.84 : x
  2. Step 2: Convert to fraction form
    2,655.46/3,984 = 1,357.84/x
  3. Step 3: Cross multiply
    2,655.46x = 3,984 × 1,357.84
  4. Step 4: Simplify right side
    2,655.46x = 5,409,634.56
  5. Step 5: Solve for x
    x = 5,409,634.56/2,655.46
  6. Step 6: Final answer
    x = 2,037.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.