Home / 7,907.28-11,862.72-2,712.84

Finding the Fourth Proportional to 7,907.28, 11,862.72 and 2,712.84

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Solution

The fourth proportional to 7,907.28, 11,862.72 and 2,712.84 is: 4,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.28 : 11,862.72 = 2,712.84 : x
  2. Step 2: Convert to fraction form
    7,907.28/11,862.72 = 2,712.84/x
  3. Step 3: Cross multiply
    7,907.28x = 11,862.72 × 2,712.84
  4. Step 4: Simplify right side
    7,907.28x = 32,181,661.32
  5. Step 5: Solve for x
    x = 32,181,661.32/7,907.28
  6. Step 6: Final answer
    x = 4,069.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.