Home / 1,513.92-2,271.06-1,422.80

Finding the Fourth Proportional to 1,513.92, 2,271.06 and 1,422.80

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Solution

The fourth proportional to 1,513.92, 2,271.06 and 1,422.80 is: 2,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.92 : 2,271.06 = 1,422.80 : x
  2. Step 2: Convert to fraction form
    1,513.92/2,271.06 = 1,422.80/x
  3. Step 3: Cross multiply
    1,513.92x = 2,271.06 × 1,422.80
  4. Step 4: Simplify right side
    1,513.92x = 3,231,252.81
  5. Step 5: Solve for x
    x = 3,231,252.81/1,513.92
  6. Step 6: Final answer
    x = 2,134.36

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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.