Home / 1,872.80-2,583.62-1,126.32

Finding the Fourth Proportional to 1,872.80, 2,583.62 and 1,126.32

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Solution

The fourth proportional to 1,872.80, 2,583.62 and 1,126.32 is: 1,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.80 : 2,583.62 = 1,126.32 : x
  2. Step 2: Convert to fraction form
    1,872.80/2,583.62 = 1,126.32/x
  3. Step 3: Cross multiply
    1,872.80x = 2,583.62 × 1,126.32
  4. Step 4: Simplify right side
    1,872.80x = 2,909,977.25
  5. Step 5: Solve for x
    x = 2,909,977.25/1,872.80
  6. Step 6: Final answer
    x = 1,553.82

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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.