Home / 1,842.21-2,536.92-1,805.76

Finding the Fourth Proportional to 1,842.21, 2,536.92 and 1,805.76

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Solution

The fourth proportional to 1,842.21, 2,536.92 and 1,805.76 is: 2,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.21 : 2,536.92 = 1,805.76 : x
  2. Step 2: Convert to fraction form
    1,842.21/2,536.92 = 1,805.76/x
  3. Step 3: Cross multiply
    1,842.21x = 2,536.92 × 1,805.76
  4. Step 4: Simplify right side
    1,842.21x = 4,581,068.66
  5. Step 5: Solve for x
    x = 4,581,068.66/1,842.21
  6. Step 6: Final answer
    x = 2,486.72

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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.