Home / 3,124.96-4,685.88-1,663.72

Finding the Fourth Proportional to 3,124.96, 4,685.88 and 1,663.72

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Solution

The fourth proportional to 3,124.96, 4,685.88 and 1,663.72 is: 2,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.96 : 4,685.88 = 1,663.72 : x
  2. Step 2: Convert to fraction form
    3,124.96/4,685.88 = 1,663.72/x
  3. Step 3: Cross multiply
    3,124.96x = 4,685.88 × 1,663.72
  4. Step 4: Simplify right side
    3,124.96x = 7,795,992.27
  5. Step 5: Solve for x
    x = 7,795,992.27/3,124.96
  6. Step 6: Final answer
    x = 2,494.75

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1.5x scale

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.