Home / 2,476.80-3,715.31-1,380.34

Finding the Fourth Proportional to 2,476.80, 3,715.31 and 1,380.34

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Solution

The fourth proportional to 2,476.80, 3,715.31 and 1,380.34 is: 2,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.80 : 3,715.31 = 1,380.34 : x
  2. Step 2: Convert to fraction form
    2,476.80/3,715.31 = 1,380.34/x
  3. Step 3: Cross multiply
    2,476.80x = 3,715.31 × 1,380.34
  4. Step 4: Simplify right side
    2,476.80x = 5,128,391.01
  5. Step 5: Solve for x
    x = 5,128,391.01/2,476.80
  6. Step 6: Final answer
    x = 2,070.57

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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.