Home / 5,113.22-7,670.96-1,781.62

Finding the Fourth Proportional to 5,113.22, 7,670.96 and 1,781.62

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Solution

The fourth proportional to 5,113.22, 7,670.96 and 1,781.62 is: 2,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.22 : 7,670.96 = 1,781.62 : x
  2. Step 2: Convert to fraction form
    5,113.22/7,670.96 = 1,781.62/x
  3. Step 3: Cross multiply
    5,113.22x = 7,670.96 × 1,781.62
  4. Step 4: Simplify right side
    5,113.22x = 13,666,735.76
  5. Step 5: Solve for x
    x = 13,666,735.76/5,113.22
  6. Step 6: Final answer
    x = 2,672.82

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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.