Home / 3,523.20-5,284.80-1,878.90

Finding the Fourth Proportional to 3,523.20, 5,284.80 and 1,878.90

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Solution

The fourth proportional to 3,523.20, 5,284.80 and 1,878.90 is: 2,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,523.20 : 5,284.80 = 1,878.90 : x
  2. Step 2: Convert to fraction form
    3,523.20/5,284.80 = 1,878.90/x
  3. Step 3: Cross multiply
    3,523.20x = 5,284.80 × 1,878.90
  4. Step 4: Simplify right side
    3,523.20x = 9,929,610.72
  5. Step 5: Solve for x
    x = 9,929,610.72/3,523.20
  6. Step 6: Final answer
    x = 2,818.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.