Home / 2,557.97-3,836.87-709.19

Finding the Fourth Proportional to 2,557.97, 3,836.87 and 709.19

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Solution

The fourth proportional to 2,557.97, 3,836.87 and 709.19 is: 1,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.97 : 3,836.87 = 709.19 : x
  2. Step 2: Convert to fraction form
    2,557.97/3,836.87 = 709.19/x
  3. Step 3: Cross multiply
    2,557.97x = 3,836.87 × 709.19
  4. Step 4: Simplify right side
    2,557.97x = 2,721,075.88
  5. Step 5: Solve for x
    x = 2,721,075.88/2,557.97
  6. Step 6: Final answer
    x = 1,063.77

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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.