Home / 5,878.13-8,109.23-3,518.90

Finding the Fourth Proportional to 5,878.13, 8,109.23 and 3,518.90

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Solution

The fourth proportional to 5,878.13, 8,109.23 and 3,518.90 is: 4,854.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.13 : 8,109.23 = 3,518.90 : x
  2. Step 2: Convert to fraction form
    5,878.13/8,109.23 = 3,518.90/x
  3. Step 3: Cross multiply
    5,878.13x = 8,109.23 × 3,518.90
  4. Step 4: Simplify right side
    5,878.13x = 28,535,511.31
  5. Step 5: Solve for x
    x = 28,535,511.31/5,878.13
  6. Step 6: Final answer
    x = 4,854.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.