Home / 5,456.95-8,186.13-1,561.46

Finding the Fourth Proportional to 5,456.95, 8,186.13 and 1,561.46

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Solution

The fourth proportional to 5,456.95, 8,186.13 and 1,561.46 is: 2,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.95 : 8,186.13 = 1,561.46 : x
  2. Step 2: Convert to fraction form
    5,456.95/8,186.13 = 1,561.46/x
  3. Step 3: Cross multiply
    5,456.95x = 8,186.13 × 1,561.46
  4. Step 4: Simplify right side
    5,456.95x = 12,782,273.62
  5. Step 5: Solve for x
    x = 12,782,273.62/5,456.95
  6. Step 6: Final answer
    x = 2,342.39

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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.