Home / 2,476.88-3,415.20-1,977.92

Finding the Fourth Proportional to 2,476.88, 3,415.20 and 1,977.92

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Solution

The fourth proportional to 2,476.88, 3,415.20 and 1,977.92 is: 2,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.88 : 3,415.20 = 1,977.92 : x
  2. Step 2: Convert to fraction form
    2,476.88/3,415.20 = 1,977.92/x
  3. Step 3: Cross multiply
    2,476.88x = 3,415.20 × 1,977.92
  4. Step 4: Simplify right side
    2,476.88x = 6,754,992.38
  5. Step 5: Solve for x
    x = 6,754,992.38/2,476.88
  6. Step 6: Final answer
    x = 2,727.22

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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.