Home / 5,490.47-7,580.33-3,605.39

Finding the Fourth Proportional to 5,490.47, 7,580.33 and 3,605.39

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Solution

The fourth proportional to 5,490.47, 7,580.33 and 3,605.39 is: 4,977.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.47 : 7,580.33 = 3,605.39 : x
  2. Step 2: Convert to fraction form
    5,490.47/7,580.33 = 3,605.39/x
  3. Step 3: Cross multiply
    5,490.47x = 7,580.33 × 3,605.39
  4. Step 4: Simplify right side
    5,490.47x = 27,330,073.94
  5. Step 5: Solve for x
    x = 27,330,073.94/5,490.47
  6. Step 6: Final answer
    x = 4,977.73

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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.