Home / 6,129.78-8,457.62-3,611.70

Finding the Fourth Proportional to 6,129.78, 8,457.62 and 3,611.70

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Solution

The fourth proportional to 6,129.78, 8,457.62 and 3,611.70 is: 4,983.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.78 : 8,457.62 = 3,611.70 : x
  2. Step 2: Convert to fraction form
    6,129.78/8,457.62 = 3,611.70/x
  3. Step 3: Cross multiply
    6,129.78x = 8,457.62 × 3,611.70
  4. Step 4: Simplify right side
    6,129.78x = 30,546,368.10
  5. Step 5: Solve for x
    x = 30,546,368.10/6,129.78
  6. Step 6: Final answer
    x = 4,983.27

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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.