Home / 3,124.32-4,686.34-1,736.78

Finding the Fourth Proportional to 3,124.32, 4,686.34 and 1,736.78

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Solution

The fourth proportional to 3,124.32, 4,686.34 and 1,736.78 is: 2,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.32 : 4,686.34 = 1,736.78 : x
  2. Step 2: Convert to fraction form
    3,124.32/4,686.34 = 1,736.78/x
  3. Step 3: Cross multiply
    3,124.32x = 4,686.34 × 1,736.78
  4. Step 4: Simplify right side
    3,124.32x = 8,139,109.47
  5. Step 5: Solve for x
    x = 8,139,109.47/3,124.32
  6. Step 6: Final answer
    x = 2,605.09

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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.