Home / 3,125.96-4,687.38-1,664.72

Finding the Fourth Proportional to 3,125.96, 4,687.38 and 1,664.72

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Solution

The fourth proportional to 3,125.96, 4,687.38 and 1,664.72 is: 2,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.96 : 4,687.38 = 1,664.72 : x
  2. Step 2: Convert to fraction form
    3,125.96/4,687.38 = 1,664.72/x
  3. Step 3: Cross multiply
    3,125.96x = 4,687.38 × 1,664.72
  4. Step 4: Simplify right side
    3,125.96x = 7,803,175.23
  5. Step 5: Solve for x
    x = 7,803,175.23/3,125.96
  6. Step 6: Final answer
    x = 2,496.25

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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.