Home / 7,742.88-11,613.96-1,899.18

Finding the Fourth Proportional to 7,742.88, 11,613.96 and 1,899.18

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Solution

The fourth proportional to 7,742.88, 11,613.96 and 1,899.18 is: 2,848.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.88 : 11,613.96 = 1,899.18 : x
  2. Step 2: Convert to fraction form
    7,742.88/11,613.96 = 1,899.18/x
  3. Step 3: Cross multiply
    7,742.88x = 11,613.96 × 1,899.18
  4. Step 4: Simplify right side
    7,742.88x = 22,057,000.55
  5. Step 5: Solve for x
    x = 22,057,000.55/7,742.88
  6. Step 6: Final answer
    x = 2,848.68

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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.