Home / 3,609.70-4,980.86-2,117.27

Finding the Fourth Proportional to 3,609.70, 4,980.86 and 2,117.27

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Solution

The fourth proportional to 3,609.70, 4,980.86 and 2,117.27 is: 2,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.70 : 4,980.86 = 2,117.27 : x
  2. Step 2: Convert to fraction form
    3,609.70/4,980.86 = 2,117.27/x
  3. Step 3: Cross multiply
    3,609.70x = 4,980.86 × 2,117.27
  4. Step 4: Simplify right side
    3,609.70x = 10,545,835.26
  5. Step 5: Solve for x
    x = 10,545,835.26/3,609.70
  6. Step 6: Final answer
    x = 2,921.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.