Home / 2,772.88-4,160.82-1,130.56

Finding the Fourth Proportional to 2,772.88, 4,160.82 and 1,130.56

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Solution

The fourth proportional to 2,772.88, 4,160.82 and 1,130.56 is: 1,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.88 : 4,160.82 = 1,130.56 : x
  2. Step 2: Convert to fraction form
    2,772.88/4,160.82 = 1,130.56/x
  3. Step 3: Cross multiply
    2,772.88x = 4,160.82 × 1,130.56
  4. Step 4: Simplify right side
    2,772.88x = 4,704,056.66
  5. Step 5: Solve for x
    x = 4,704,056.66/2,772.88
  6. Step 6: Final answer
    x = 1,696.45

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1.5x scale

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.