Home / 5,876.80-8,109.66-4,477.12

Finding the Fourth Proportional to 5,876.80, 8,109.66 and 4,477.12

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Solution

The fourth proportional to 5,876.80, 8,109.66 and 4,477.12 is: 6,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,876.80 : 8,109.66 = 4,477.12 : x
  2. Step 2: Convert to fraction form
    5,876.80/8,109.66 = 4,477.12/x
  3. Step 3: Cross multiply
    5,876.80x = 8,109.66 × 4,477.12
  4. Step 4: Simplify right side
    5,876.80x = 36,307,920.98
  5. Step 5: Solve for x
    x = 36,307,920.98/5,876.80
  6. Step 6: Final answer
    x = 6,178.18

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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.