Home / 1,421.78-2,133.50-1,014.27

Finding the Fourth Proportional to 1,421.78, 2,133.50 and 1,014.27

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Solution

The fourth proportional to 1,421.78, 2,133.50 and 1,014.27 is: 1,522.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421.78 : 2,133.50 = 1,014.27 : x
  2. Step 2: Convert to fraction form
    1,421.78/2,133.50 = 1,014.27/x
  3. Step 3: Cross multiply
    1,421.78x = 2,133.50 × 1,014.27
  4. Step 4: Simplify right side
    1,421.78x = 2,163,939.97
  5. Step 5: Solve for x
    x = 2,163,939.97/1,421.78
  6. Step 6: Final answer
    x = 1,522.00

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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.