Home / 5,457.30-8,190.18-3,607.80

Finding the Fourth Proportional to 5,457.30, 8,190.18 and 3,607.80

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Solution

The fourth proportional to 5,457.30, 8,190.18 and 3,607.80 is: 5,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.30 : 8,190.18 = 3,607.80 : x
  2. Step 2: Convert to fraction form
    5,457.30/8,190.18 = 3,607.80/x
  3. Step 3: Cross multiply
    5,457.30x = 8,190.18 × 3,607.80
  4. Step 4: Simplify right side
    5,457.30x = 29,548,531.40
  5. Step 5: Solve for x
    x = 29,548,531.40/5,457.30
  6. Step 6: Final answer
    x = 5,414.50

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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.