Home / 5,240.77-7,232.36-2,882.86

Finding the Fourth Proportional to 5,240.77, 7,232.36 and 2,882.86

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Solution

The fourth proportional to 5,240.77, 7,232.36 and 2,882.86 is: 3,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.77 : 7,232.36 = 2,882.86 : x
  2. Step 2: Convert to fraction form
    5,240.77/7,232.36 = 2,882.86/x
  3. Step 3: Cross multiply
    5,240.77x = 7,232.36 × 2,882.86
  4. Step 4: Simplify right side
    5,240.77x = 20,849,848.85
  5. Step 5: Solve for x
    x = 20,849,848.85/5,240.77
  6. Step 6: Final answer
    x = 3,978.40

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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.