Home / 3,209.16-4,430.22-2,489.74

Finding the Fourth Proportional to 3,209.16, 4,430.22 and 2,489.74

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Solution

The fourth proportional to 3,209.16, 4,430.22 and 2,489.74 is: 3,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.16 : 4,430.22 = 2,489.74 : x
  2. Step 2: Convert to fraction form
    3,209.16/4,430.22 = 2,489.74/x
  3. Step 3: Cross multiply
    3,209.16x = 4,430.22 × 2,489.74
  4. Step 4: Simplify right side
    3,209.16x = 11,030,095.94
  5. Step 5: Solve for x
    x = 11,030,095.94/3,209.16
  6. Step 6: Final answer
    x = 3,437.07

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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.