Home / 6,123.78-9,185.70-1,741.20

Finding the Fourth Proportional to 6,123.78, 9,185.70 and 1,741.20

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Solution

The fourth proportional to 6,123.78, 9,185.70 and 1,741.20 is: 2,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,123.78 : 9,185.70 = 1,741.20 : x
  2. Step 2: Convert to fraction form
    6,123.78/9,185.70 = 1,741.20/x
  3. Step 3: Cross multiply
    6,123.78x = 9,185.70 × 1,741.20
  4. Step 4: Simplify right side
    6,123.78x = 15,994,140.84
  5. Step 5: Solve for x
    x = 15,994,140.84/6,123.78
  6. Step 6: Final answer
    x = 2,611.81

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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.