Home / 1,427.94-2,130.26-1,359.90

Finding the Fourth Proportional to 1,427.94, 2,130.26 and 1,359.90

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Solution

The fourth proportional to 1,427.94, 2,130.26 and 1,359.90 is: 2,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.94 : 2,130.26 = 1,359.90 : x
  2. Step 2: Convert to fraction form
    1,427.94/2,130.26 = 1,359.90/x
  3. Step 3: Cross multiply
    1,427.94x = 2,130.26 × 1,359.90
  4. Step 4: Simplify right side
    1,427.94x = 2,896,933.77
  5. Step 5: Solve for x
    x = 2,896,933.77/1,427.94
  6. Step 6: Final answer
    x = 2,028.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.