Home / 5,445.63-7,517.81-3,679.63

Finding the Fourth Proportional to 5,445.63, 7,517.81 and 3,679.63

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Solution

The fourth proportional to 5,445.63, 7,517.81 and 3,679.63 is: 5,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.63 : 7,517.81 = 3,679.63 : x
  2. Step 2: Convert to fraction form
    5,445.63/7,517.81 = 3,679.63/x
  3. Step 3: Cross multiply
    5,445.63x = 7,517.81 × 3,679.63
  4. Step 4: Simplify right side
    5,445.63x = 27,662,749.61
  5. Step 5: Solve for x
    x = 27,662,749.61/5,445.63
  6. Step 6: Final answer
    x = 5,079.81

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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.