Home / 2,712.17-3,746.31-2,005.45

Finding the Fourth Proportional to 2,712.17, 3,746.31 and 2,005.45

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Solution

The fourth proportional to 2,712.17, 3,746.31 and 2,005.45 is: 2,770.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.17 : 3,746.31 = 2,005.45 : x
  2. Step 2: Convert to fraction form
    2,712.17/3,746.31 = 2,005.45/x
  3. Step 3: Cross multiply
    2,712.17x = 3,746.31 × 2,005.45
  4. Step 4: Simplify right side
    2,712.17x = 7,513,037.39
  5. Step 5: Solve for x
    x = 7,513,037.39/2,712.17
  6. Step 6: Final answer
    x = 2,770.12

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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.