Home / 5,240.81-7,232.17-2,882.95

Finding the Fourth Proportional to 5,240.81, 7,232.17 and 2,882.95

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Solution

The fourth proportional to 5,240.81, 7,232.17 and 2,882.95 is: 3,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.81 : 7,232.17 = 2,882.95 : x
  2. Step 2: Convert to fraction form
    5,240.81/7,232.17 = 2,882.95/x
  3. Step 3: Cross multiply
    5,240.81x = 7,232.17 × 2,882.95
  4. Step 4: Simplify right side
    5,240.81x = 20,849,984.50
  5. Step 5: Solve for x
    x = 20,849,984.50/5,240.81
  6. Step 6: Final answer
    x = 3,978.39

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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.