Home / 5,246.18-7,240.05-2,888.84

Finding the Fourth Proportional to 5,246.18, 7,240.05 and 2,888.84

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Solution

The fourth proportional to 5,246.18, 7,240.05 and 2,888.84 is: 3,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.18 : 7,240.05 = 2,888.84 : x
  2. Step 2: Convert to fraction form
    5,246.18/7,240.05 = 2,888.84/x
  3. Step 3: Cross multiply
    5,246.18x = 7,240.05 × 2,888.84
  4. Step 4: Simplify right side
    5,246.18x = 20,915,346.04
  5. Step 5: Solve for x
    x = 20,915,346.04/5,246.18
  6. Step 6: Final answer
    x = 3,986.78

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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.