Home / 7,155.25-9,873.84-4,170.58

Finding the Fourth Proportional to 7,155.25, 9,873.84 and 4,170.58

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Solution

The fourth proportional to 7,155.25, 9,873.84 and 4,170.58 is: 5,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.25 : 9,873.84 = 4,170.58 : x
  2. Step 2: Convert to fraction form
    7,155.25/9,873.84 = 4,170.58/x
  3. Step 3: Cross multiply
    7,155.25x = 9,873.84 × 4,170.58
  4. Step 4: Simplify right side
    7,155.25x = 41,179,639.63
  5. Step 5: Solve for x
    x = 41,179,639.63/7,155.25
  6. Step 6: Final answer
    x = 5,755.16

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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.