Home / 5,175.55-7,760.95-1,664.91

Finding the Fourth Proportional to 5,175.55, 7,760.95 and 1,664.91

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Solution

The fourth proportional to 5,175.55, 7,760.95 and 1,664.91 is: 2,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.55 : 7,760.95 = 1,664.91 : x
  2. Step 2: Convert to fraction form
    5,175.55/7,760.95 = 1,664.91/x
  3. Step 3: Cross multiply
    5,175.55x = 7,760.95 × 1,664.91
  4. Step 4: Simplify right side
    5,175.55x = 12,921,283.26
  5. Step 5: Solve for x
    x = 12,921,283.26/5,175.55
  6. Step 6: Final answer
    x = 2,496.60

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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.