Home / 7,725.04-10,660.60-4,188.28

Finding the Fourth Proportional to 7,725.04, 10,660.60 and 4,188.28

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Solution

The fourth proportional to 7,725.04, 10,660.60 and 4,188.28 is: 5,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.04 : 10,660.60 = 4,188.28 : x
  2. Step 2: Convert to fraction form
    7,725.04/10,660.60 = 4,188.28/x
  3. Step 3: Cross multiply
    7,725.04x = 10,660.60 × 4,188.28
  4. Step 4: Simplify right side
    7,725.04x = 44,649,577.77
  5. Step 5: Solve for x
    x = 44,649,577.77/7,725.04
  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.