Home / 3,209.40-4,428.98-1,883.12

Finding the Fourth Proportional to 3,209.40, 4,428.98 and 1,883.12

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Solution

The fourth proportional to 3,209.40, 4,428.98 and 1,883.12 is: 2,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.40 : 4,428.98 = 1,883.12 : x
  2. Step 2: Convert to fraction form
    3,209.40/4,428.98 = 1,883.12/x
  3. Step 3: Cross multiply
    3,209.40x = 4,428.98 × 1,883.12
  4. Step 4: Simplify right side
    3,209.40x = 8,340,300.82
  5. Step 5: Solve for x
    x = 8,340,300.82/3,209.40
  6. Step 6: Final answer
    x = 2,598.71

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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.