Home / 1,842.08-2,764.20-1,256.90

Finding the Fourth Proportional to 1,842.08, 2,764.20 and 1,256.90

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Solution

The fourth proportional to 1,842.08, 2,764.20 and 1,256.90 is: 1,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.08 : 2,764.20 = 1,256.90 : x
  2. Step 2: Convert to fraction form
    1,842.08/2,764.20 = 1,256.90/x
  3. Step 3: Cross multiply
    1,842.08x = 2,764.20 × 1,256.90
  4. Step 4: Simplify right side
    1,842.08x = 3,474,322.98
  5. Step 5: Solve for x
    x = 3,474,322.98/1,842.08
  6. Step 6: Final answer
    x = 1,886.09

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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.