Home / 5,457.55-8,186.77-1,946.20

Finding the Fourth Proportional to 5,457.55, 8,186.77 and 1,946.20

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Solution

The fourth proportional to 5,457.55, 8,186.77 and 1,946.20 is: 2,919.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.55 : 8,186.77 = 1,946.20 : x
  2. Step 2: Convert to fraction form
    5,457.55/8,186.77 = 1,946.20/x
  3. Step 3: Cross multiply
    5,457.55x = 8,186.77 × 1,946.20
  4. Step 4: Simplify right side
    5,457.55x = 15,933,091.77
  5. Step 5: Solve for x
    x = 15,933,091.77/5,457.55
  6. Step 6: Final answer
    x = 2,919.46

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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.