Home / 2,712.14-3,741.54-1,916.63

Finding the Fourth Proportional to 2,712.14, 3,741.54 and 1,916.63

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Solution

The fourth proportional to 2,712.14, 3,741.54 and 1,916.63 is: 2,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.14 : 3,741.54 = 1,916.63 : x
  2. Step 2: Convert to fraction form
    2,712.14/3,741.54 = 1,916.63/x
  3. Step 3: Cross multiply
    2,712.14x = 3,741.54 × 1,916.63
  4. Step 4: Simplify right side
    2,712.14x = 7,171,147.81
  5. Step 5: Solve for x
    x = 7,171,147.81/2,712.14
  6. Step 6: Final answer
    x = 2,644.09

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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.