Home / 3,253.77-4,490.03-1,909.19

Finding the Fourth Proportional to 3,253.77, 4,490.03 and 1,909.19

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Solution

The fourth proportional to 3,253.77, 4,490.03 and 1,909.19 is: 2,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.77 : 4,490.03 = 1,909.19 : x
  2. Step 2: Convert to fraction form
    3,253.77/4,490.03 = 1,909.19/x
  3. Step 3: Cross multiply
    3,253.77x = 4,490.03 × 1,909.19
  4. Step 4: Simplify right side
    3,253.77x = 8,572,288.38
  5. Step 5: Solve for x
    x = 8,572,288.38/3,253.77
  6. Step 6: Final answer
    x = 2,634.58

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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.