Home / 3,518.22-5,280.60-1,788.06

Finding the Fourth Proportional to 3,518.22, 5,280.60 and 1,788.06

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Solution

The fourth proportional to 3,518.22, 5,280.60 and 1,788.06 is: 2,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.22 : 5,280.60 = 1,788.06 : x
  2. Step 2: Convert to fraction form
    3,518.22/5,280.60 = 1,788.06/x
  3. Step 3: Cross multiply
    3,518.22x = 5,280.60 × 1,788.06
  4. Step 4: Simplify right side
    3,518.22x = 9,442,029.64
  5. Step 5: Solve for x
    x = 9,442,029.64/3,518.22
  6. Step 6: Final answer
    x = 2,683.75

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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.