Home / 7,724.88-10,660.48-4,188.24

Finding the Fourth Proportional to 7,724.88, 10,660.48 and 4,188.24

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Solution

The fourth proportional to 7,724.88, 10,660.48 and 4,188.24 is: 5,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.88 : 10,660.48 = 4,188.24 : x
  2. Step 2: Convert to fraction form
    7,724.88/10,660.48 = 4,188.24/x
  3. Step 3: Cross multiply
    7,724.88x = 10,660.48 × 4,188.24
  4. Step 4: Simplify right side
    7,724.88x = 44,648,648.76
  5. Step 5: Solve for x
    x = 44,648,648.76/7,724.88
  6. Step 6: Final answer
    x = 5,779.85

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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.