Home / 7,220.60-9,961.46-4,387.51

Finding the Fourth Proportional to 7,220.60, 9,961.46 and 4,387.51

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Solution

The fourth proportional to 7,220.60, 9,961.46 and 4,387.51 is: 6,052.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.60 : 9,961.46 = 4,387.51 : x
  2. Step 2: Convert to fraction form
    7,220.60/9,961.46 = 4,387.51/x
  3. Step 3: Cross multiply
    7,220.60x = 9,961.46 × 4,387.51
  4. Step 4: Simplify right side
    7,220.60x = 43,706,012.33
  5. Step 5: Solve for x
    x = 43,706,012.33/7,220.60
  6. Step 6: Final answer
    x = 6,052.96

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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.