Home / 1,861.14-2,585.04-1,809.30

Finding the Fourth Proportional to 1,861.14, 2,585.04 and 1,809.30

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Solution

The fourth proportional to 1,861.14, 2,585.04 and 1,809.30 is: 2,513.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.14 : 2,585.04 = 1,809.30 : x
  2. Step 2: Convert to fraction form
    1,861.14/2,585.04 = 1,809.30/x
  3. Step 3: Cross multiply
    1,861.14x = 2,585.04 × 1,809.30
  4. Step 4: Simplify right side
    1,861.14x = 4,677,112.87
  5. Step 5: Solve for x
    x = 4,677,112.87/1,861.14
  6. Step 6: Final answer
    x = 2,513.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.