Home / 2,154.57-3,225.76-1,372.63

Finding the Fourth Proportional to 2,154.57, 3,225.76 and 1,372.63

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Solution

The fourth proportional to 2,154.57, 3,225.76 and 1,372.63 is: 2,055.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.57 : 3,225.76 = 1,372.63 : x
  2. Step 2: Convert to fraction form
    2,154.57/3,225.76 = 1,372.63/x
  3. Step 3: Cross multiply
    2,154.57x = 3,225.76 × 1,372.63
  4. Step 4: Simplify right side
    2,154.57x = 4,427,774.95
  5. Step 5: Solve for x
    x = 4,427,774.95/2,154.57
  6. Step 6: Final answer
    x = 2,055.06

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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.