Home / 2,557.50-3,529.14-1,438.08

Finding the Fourth Proportional to 2,557.50, 3,529.14 and 1,438.08

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Solution

The fourth proportional to 2,557.50, 3,529.14 and 1,438.08 is: 1,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.50 : 3,529.14 = 1,438.08 : x
  2. Step 2: Convert to fraction form
    2,557.50/3,529.14 = 1,438.08/x
  3. Step 3: Cross multiply
    2,557.50x = 3,529.14 × 1,438.08
  4. Step 4: Simplify right side
    2,557.50x = 5,075,185.65
  5. Step 5: Solve for x
    x = 5,075,185.65/2,557.50
  6. Step 6: Final answer
    x = 1,984.43

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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.