Home / 2,136.77-2,947.96-1,871.14

Finding the Fourth Proportional to 2,136.77, 2,947.96 and 1,871.14

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Solution

The fourth proportional to 2,136.77, 2,947.96 and 1,871.14 is: 2,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.77 : 2,947.96 = 1,871.14 : x
  2. Step 2: Convert to fraction form
    2,136.77/2,947.96 = 1,871.14/x
  3. Step 3: Cross multiply
    2,136.77x = 2,947.96 × 1,871.14
  4. Step 4: Simplify right side
    2,136.77x = 5,516,045.87
  5. Step 5: Solve for x
    x = 5,516,045.87/2,136.77
  6. Step 6: Final answer
    x = 2,581.49

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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.