Home / 4,129.90-6,195.76-1,356.45

Finding the Fourth Proportional to 4,129.90, 6,195.76 and 1,356.45

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Solution

The fourth proportional to 4,129.90, 6,195.76 and 1,356.45 is: 2,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.90 : 6,195.76 = 1,356.45 : x
  2. Step 2: Convert to fraction form
    4,129.90/6,195.76 = 1,356.45/x
  3. Step 3: Cross multiply
    4,129.90x = 6,195.76 × 1,356.45
  4. Step 4: Simplify right side
    4,129.90x = 8,404,254.10
  5. Step 5: Solve for x
    x = 8,404,254.10/4,129.90
  6. Step 6: Final answer
    x = 2,034.98

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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.