Home / 3,618.22-5,423.14-1,666.32

Finding the Fourth Proportional to 3,618.22, 5,423.14 and 1,666.32

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Solution

The fourth proportional to 3,618.22, 5,423.14 and 1,666.32 is: 2,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.22 : 5,423.14 = 1,666.32 : x
  2. Step 2: Convert to fraction form
    3,618.22/5,423.14 = 1,666.32/x
  3. Step 3: Cross multiply
    3,618.22x = 5,423.14 × 1,666.32
  4. Step 4: Simplify right side
    3,618.22x = 9,036,682.48
  5. Step 5: Solve for x
    x = 9,036,682.48/3,618.22
  6. Step 6: Final answer
    x = 2,497.55

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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.