Home / 3,175.33-4,381.95-1,778.08

Finding the Fourth Proportional to 3,175.33, 4,381.95 and 1,778.08

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Solution

The fourth proportional to 3,175.33, 4,381.95 and 1,778.08 is: 2,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.33 : 4,381.95 = 1,778.08 : x
  2. Step 2: Convert to fraction form
    3,175.33/4,381.95 = 1,778.08/x
  3. Step 3: Cross multiply
    3,175.33x = 4,381.95 × 1,778.08
  4. Step 4: Simplify right side
    3,175.33x = 7,791,457.66
  5. Step 5: Solve for x
    x = 7,791,457.66/3,175.33
  6. Step 6: Final answer
    x = 2,453.75

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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.