Home / 7,445.60-11,150.40-3,975.20

Finding the Fourth Proportional to 7,445.60, 11,150.40 and 3,975.20

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Solution

The fourth proportional to 7,445.60, 11,150.40 and 3,975.20 is: 5,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.60 : 11,150.40 = 3,975.20 : x
  2. Step 2: Convert to fraction form
    7,445.60/11,150.40 = 3,975.20/x
  3. Step 3: Cross multiply
    7,445.60x = 11,150.40 × 3,975.20
  4. Step 4: Simplify right side
    7,445.60x = 44,325,070.08
  5. Step 5: Solve for x
    x = 44,325,070.08/7,445.60
  6. Step 6: Final answer
    x = 5,953.19

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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.