Home / 3,201.12-4,417.68-1,874.64

Finding the Fourth Proportional to 3,201.12, 4,417.68 and 1,874.64

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Solution

The fourth proportional to 3,201.12, 4,417.68 and 1,874.64 is: 2,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.12 : 4,417.68 = 1,874.64 : x
  2. Step 2: Convert to fraction form
    3,201.12/4,417.68 = 1,874.64/x
  3. Step 3: Cross multiply
    3,201.12x = 4,417.68 × 1,874.64
  4. Step 4: Simplify right side
    3,201.12x = 8,281,559.64
  5. Step 5: Solve for x
    x = 8,281,559.64/3,201.12
  6. Step 6: Final answer
    x = 2,587.08

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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.