Home / 5,267.80-7,269.19-2,909.75

Finding the Fourth Proportional to 5,267.80, 7,269.19 and 2,909.75

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Solution

The fourth proportional to 5,267.80, 7,269.19 and 2,909.75 is: 4,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.80 : 7,269.19 = 2,909.75 : x
  2. Step 2: Convert to fraction form
    5,267.80/7,269.19 = 2,909.75/x
  3. Step 3: Cross multiply
    5,267.80x = 7,269.19 × 2,909.75
  4. Step 4: Simplify right side
    5,267.80x = 21,151,511.05
  5. Step 5: Solve for x
    x = 21,151,511.05/5,267.80
  6. Step 6: Final answer
    x = 4,015.25

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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.