Home / 3,617.47-5,422.01-1,665.57

Finding the Fourth Proportional to 3,617.47, 5,422.01 and 1,665.57

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Solution

The fourth proportional to 3,617.47, 5,422.01 and 1,665.57 is: 2,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.47 : 5,422.01 = 1,665.57 : x
  2. Step 2: Convert to fraction form
    3,617.47/5,422.01 = 1,665.57/x
  3. Step 3: Cross multiply
    3,617.47x = 5,422.01 × 1,665.57
  4. Step 4: Simplify right side
    3,617.47x = 9,030,741.36
  5. Step 5: Solve for x
    x = 9,030,741.36/3,617.47
  6. Step 6: Final answer
    x = 2,496.43

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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.