Home / 7,817.41-10,785.32-4,457.80

Finding the Fourth Proportional to 7,817.41, 10,785.32 and 4,457.80

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Solution

The fourth proportional to 7,817.41, 10,785.32 and 4,457.80 is: 6,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.41 : 10,785.32 = 4,457.80 : x
  2. Step 2: Convert to fraction form
    7,817.41/10,785.32 = 4,457.80/x
  3. Step 3: Cross multiply
    7,817.41x = 10,785.32 × 4,457.80
  4. Step 4: Simplify right side
    7,817.41x = 48,078,745.57
  5. Step 5: Solve for x
    x = 48,078,745.57/7,817.41
  6. Step 6: Final answer
    x = 6,150.22

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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.