Home / 7,125.60-10,688.80-2,195.44

Finding the Fourth Proportional to 7,125.60, 10,688.80 and 2,195.44

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Solution

The fourth proportional to 7,125.60, 10,688.80 and 2,195.44 is: 3,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.60 : 10,688.80 = 2,195.44 : x
  2. Step 2: Convert to fraction form
    7,125.60/10,688.80 = 2,195.44/x
  3. Step 3: Cross multiply
    7,125.60x = 10,688.80 × 2,195.44
  4. Step 4: Simplify right side
    7,125.60x = 23,466,619.07
  5. Step 5: Solve for x
    x = 23,466,619.07/7,125.60
  6. Step 6: Final answer
    x = 3,293.28

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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.