Home / 4,187.48-6,279.11-1,721.63

Finding the Fourth Proportional to 4,187.48, 6,279.11 and 1,721.63

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Solution

The fourth proportional to 4,187.48, 6,279.11 and 1,721.63 is: 2,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.48 : 6,279.11 = 1,721.63 : x
  2. Step 2: Convert to fraction form
    4,187.48/6,279.11 = 1,721.63/x
  3. Step 3: Cross multiply
    4,187.48x = 6,279.11 × 1,721.63
  4. Step 4: Simplify right side
    4,187.48x = 10,810,264.15
  5. Step 5: Solve for x
    x = 10,810,264.15/4,187.48
  6. Step 6: Final answer
    x = 2,581.57

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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.