Home / 3,575.80-4,934.40-1,982.32

Finding the Fourth Proportional to 3,575.80, 4,934.40 and 1,982.32

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Solution

The fourth proportional to 3,575.80, 4,934.40 and 1,982.32 is: 2,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.80 : 4,934.40 = 1,982.32 : x
  2. Step 2: Convert to fraction form
    3,575.80/4,934.40 = 1,982.32/x
  3. Step 3: Cross multiply
    3,575.80x = 4,934.40 × 1,982.32
  4. Step 4: Simplify right side
    3,575.80x = 9,781,559.81
  5. Step 5: Solve for x
    x = 9,781,559.81/3,575.80
  6. Step 6: Final answer
    x = 2,735.49

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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.