Home / 2,878.14-3,966.66-2,090.82

Finding the Fourth Proportional to 2,878.14, 3,966.66 and 2,090.82

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Solution

The fourth proportional to 2,878.14, 3,966.66 and 2,090.82 is: 2,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.14 : 3,966.66 = 2,090.82 : x
  2. Step 2: Convert to fraction form
    2,878.14/3,966.66 = 2,090.82/x
  3. Step 3: Cross multiply
    2,878.14x = 3,966.66 × 2,090.82
  4. Step 4: Simplify right side
    2,878.14x = 8,293,572.06
  5. Step 5: Solve for x
    x = 8,293,572.06/2,878.14
  6. Step 6: Final answer
    x = 2,881.57

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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.