Home / 1,423.17-2,131.97-1,372.77

Finding the Fourth Proportional to 1,423.17, 2,131.97 and 1,372.77

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Solution

The fourth proportional to 1,423.17, 2,131.97 and 1,372.77 is: 2,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.17 : 2,131.97 = 1,372.77 : x
  2. Step 2: Convert to fraction form
    1,423.17/2,131.97 = 1,372.77/x
  3. Step 3: Cross multiply
    1,423.17x = 2,131.97 × 1,372.77
  4. Step 4: Simplify right side
    1,423.17x = 2,926,697.59
  5. Step 5: Solve for x
    x = 2,926,697.59/1,423.17
  6. Step 6: Final answer
    x = 2,056.46

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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.