Home / 2,557.32-3,529-1,509.72

Finding the Fourth Proportional to 2,557.32, 3,529 and 1,509.72

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Solution

The fourth proportional to 2,557.32, 3,529 and 1,509.72 is: 2,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.32 : 3,529 = 1,509.72 : x
  2. Step 2: Convert to fraction form
    2,557.32/3,529 = 1,509.72/x
  3. Step 3: Cross multiply
    2,557.32x = 3,529 × 1,509.72
  4. Step 4: Simplify right side
    2,557.32x = 5,327,801.88
  5. Step 5: Solve for x
    x = 5,327,801.88/2,557.32
  6. Step 6: Final answer
    x = 2,083.35

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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.