Home / 6,128.15-8,457.47-3,611.04

Finding the Fourth Proportional to 6,128.15, 8,457.47 and 3,611.04

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Solution

The fourth proportional to 6,128.15, 8,457.47 and 3,611.04 is: 4,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.15 : 8,457.47 = 3,611.04 : x
  2. Step 2: Convert to fraction form
    6,128.15/8,457.47 = 3,611.04/x
  3. Step 3: Cross multiply
    6,128.15x = 8,457.47 × 3,611.04
  4. Step 4: Simplify right side
    6,128.15x = 30,540,244.41
  5. Step 5: Solve for x
    x = 30,540,244.41/6,128.15
  6. Step 6: Final answer
    x = 4,983.60

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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.