Home / 2,878.19-3,973.24-2,170.32

Finding the Fourth Proportional to 2,878.19, 3,973.24 and 2,170.32

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Solution

The fourth proportional to 2,878.19, 3,973.24 and 2,170.32 is: 2,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.19 : 3,973.24 = 2,170.32 : x
  2. Step 2: Convert to fraction form
    2,878.19/3,973.24 = 2,170.32/x
  3. Step 3: Cross multiply
    2,878.19x = 3,973.24 × 2,170.32
  4. Step 4: Simplify right side
    2,878.19x = 8,623,202.24
  5. Step 5: Solve for x
    x = 8,623,202.24/2,878.19
  6. Step 6: Final answer
    x = 2,996.05

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Double scale
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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.