Home / 3,209.79-4,429.02-1,812.27

Finding the Fourth Proportional to 3,209.79, 4,429.02 and 1,812.27

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Solution

The fourth proportional to 3,209.79, 4,429.02 and 1,812.27 is: 2,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.79 : 4,429.02 = 1,812.27 : x
  2. Step 2: Convert to fraction form
    3,209.79/4,429.02 = 1,812.27/x
  3. Step 3: Cross multiply
    3,209.79x = 4,429.02 × 1,812.27
  4. Step 4: Simplify right side
    3,209.79x = 8,026,580.08
  5. Step 5: Solve for x
    x = 8,026,580.08/3,209.79
  6. Step 6: Final answer
    x = 2,500.66

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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.