Home / 2,687.14-4,030.74-1,455.16

Finding the Fourth Proportional to 2,687.14, 4,030.74 and 1,455.16

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Solution

The fourth proportional to 2,687.14, 4,030.74 and 1,455.16 is: 2,182.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.14 : 4,030.74 = 1,455.16 : x
  2. Step 2: Convert to fraction form
    2,687.14/4,030.74 = 1,455.16/x
  3. Step 3: Cross multiply
    2,687.14x = 4,030.74 × 1,455.16
  4. Step 4: Simplify right side
    2,687.14x = 5,865,371.62
  5. Step 5: Solve for x
    x = 5,865,371.62/2,687.14
  6. Step 6: Final answer
    x = 2,182.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.