Home / 5,685.15-8,519.43-2,518.77

Finding the Fourth Proportional to 5,685.15, 8,519.43 and 2,518.77

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Solution

The fourth proportional to 5,685.15, 8,519.43 and 2,518.77 is: 3,774.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.15 : 8,519.43 = 2,518.77 : x
  2. Step 2: Convert to fraction form
    5,685.15/8,519.43 = 2,518.77/x
  3. Step 3: Cross multiply
    5,685.15x = 8,519.43 × 2,518.77
  4. Step 4: Simplify right side
    5,685.15x = 21,458,484.70
  5. Step 5: Solve for x
    x = 21,458,484.70/5,685.15
  6. Step 6: Final answer
    x = 3,774.48

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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.