Home / 5,669.47-7,825.31-3,781.63

Finding the Fourth Proportional to 5,669.47, 7,825.31 and 3,781.63

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Solution

The fourth proportional to 5,669.47, 7,825.31 and 3,781.63 is: 5,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.47 : 7,825.31 = 3,781.63 : x
  2. Step 2: Convert to fraction form
    5,669.47/7,825.31 = 3,781.63/x
  3. Step 3: Cross multiply
    5,669.47x = 7,825.31 × 3,781.63
  4. Step 4: Simplify right side
    5,669.47x = 29,592,427.06
  5. Step 5: Solve for x
    x = 29,592,427.06/5,669.47
  6. Step 6: Final answer
    x = 5,219.61

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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.