Home / 3,311.60-4,570.14-1,819.64

Finding the Fourth Proportional to 3,311.60, 4,570.14 and 1,819.64

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Solution

The fourth proportional to 3,311.60, 4,570.14 and 1,819.64 is: 2,511.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.60 : 4,570.14 = 1,819.64 : x
  2. Step 2: Convert to fraction form
    3,311.60/4,570.14 = 1,819.64/x
  3. Step 3: Cross multiply
    3,311.60x = 4,570.14 × 1,819.64
  4. Step 4: Simplify right side
    3,311.60x = 8,316,009.55
  5. Step 5: Solve for x
    x = 8,316,009.55/3,311.60
  6. Step 6: Final answer
    x = 2,511.18

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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.