Home / 7,725.32-10,660.96-4,188.52

Finding the Fourth Proportional to 7,725.32, 10,660.96 and 4,188.52

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Solution

The fourth proportional to 7,725.32, 10,660.96 and 4,188.52 is: 5,780.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.32 : 10,660.96 = 4,188.52 : x
  2. Step 2: Convert to fraction form
    7,725.32/10,660.96 = 4,188.52/x
  3. Step 3: Cross multiply
    7,725.32x = 10,660.96 × 4,188.52
  4. Step 4: Simplify right side
    7,725.32x = 44,653,644.18
  5. Step 5: Solve for x
    x = 44,653,644.18/7,725.32
  6. Step 6: Final answer
    x = 5,780.17

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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.