Home / 3,622.42-5,433.62-1,978.07

Finding the Fourth Proportional to 3,622.42, 5,433.62 and 1,978.07

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Solution

The fourth proportional to 3,622.42, 5,433.62 and 1,978.07 is: 2,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.42 : 5,433.62 = 1,978.07 : x
  2. Step 2: Convert to fraction form
    3,622.42/5,433.62 = 1,978.07/x
  3. Step 3: Cross multiply
    3,622.42x = 5,433.62 × 1,978.07
  4. Step 4: Simplify right side
    3,622.42x = 10,748,058.49
  5. Step 5: Solve for x
    x = 10,748,058.49/3,622.42
  6. Step 6: Final answer
    x = 2,967.10

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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.