Home / 3,489.02-4,814.79-1,917.08

Finding the Fourth Proportional to 3,489.02, 4,814.79 and 1,917.08

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Solution

The fourth proportional to 3,489.02, 4,814.79 and 1,917.08 is: 2,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.02 : 4,814.79 = 1,917.08 : x
  2. Step 2: Convert to fraction form
    3,489.02/4,814.79 = 1,917.08/x
  3. Step 3: Cross multiply
    3,489.02x = 4,814.79 × 1,917.08
  4. Step 4: Simplify right side
    3,489.02x = 9,230,335.19
  5. Step 5: Solve for x
    x = 9,230,335.19/3,489.02
  6. Step 6: Final answer
    x = 2,645.54

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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.