Home / 2,114.21-3,167.84-726.80

Finding the Fourth Proportional to 2,114.21, 3,167.84 and 726.80

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Solution

The fourth proportional to 2,114.21, 3,167.84 and 726.80 is: 1,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.21 : 3,167.84 = 726.80 : x
  2. Step 2: Convert to fraction form
    2,114.21/3,167.84 = 726.80/x
  3. Step 3: Cross multiply
    2,114.21x = 3,167.84 × 726.80
  4. Step 4: Simplify right side
    2,114.21x = 2,302,386.11
  5. Step 5: Solve for x
    x = 2,302,386.11/2,114.21
  6. Step 6: Final answer
    x = 1,089.01

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1.5x scale

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.