Home / 2,557.37-3,529.14-1,438.31

Finding the Fourth Proportional to 2,557.37, 3,529.14 and 1,438.31

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Solution

The fourth proportional to 2,557.37, 3,529.14 and 1,438.31 is: 1,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.37 : 3,529.14 = 1,438.31 : x
  2. Step 2: Convert to fraction form
    2,557.37/3,529.14 = 1,438.31/x
  3. Step 3: Cross multiply
    2,557.37x = 3,529.14 × 1,438.31
  4. Step 4: Simplify right side
    2,557.37x = 5,075,979.71
  5. Step 5: Solve for x
    x = 5,075,979.71/2,557.37
  6. Step 6: Final answer
    x = 1,984.85

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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.