Home / 5,457.56-8,186.13-1,561.95

Finding the Fourth Proportional to 5,457.56, 8,186.13 and 1,561.95

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Solution

The fourth proportional to 5,457.56, 8,186.13 and 1,561.95 is: 2,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.56 : 8,186.13 = 1,561.95 : x
  2. Step 2: Convert to fraction form
    5,457.56/8,186.13 = 1,561.95/x
  3. Step 3: Cross multiply
    5,457.56x = 8,186.13 × 1,561.95
  4. Step 4: Simplify right side
    5,457.56x = 12,786,325.75
  5. Step 5: Solve for x
    x = 12,786,325.75/5,457.56
  6. Step 6: Final answer
    x = 2,342.87

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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.