Home / 5,175.56-7,760.95-1,664.92

Finding the Fourth Proportional to 5,175.56, 7,760.95 and 1,664.92

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Solution

The fourth proportional to 5,175.56, 7,760.95 and 1,664.92 is: 2,496.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.56 : 7,760.95 = 1,664.92 : x
  2. Step 2: Convert to fraction form
    5,175.56/7,760.95 = 1,664.92/x
  3. Step 3: Cross multiply
    5,175.56x = 7,760.95 × 1,664.92
  4. Step 4: Simplify right side
    5,175.56x = 12,921,322.07
  5. Step 5: Solve for x
    x = 12,921,322.07/5,175.56
  6. Step 6: Final answer
    x = 2,496.61

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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.