Home / 7,964.25-10,989.68-4,427.01

Finding the Fourth Proportional to 7,964.25, 10,989.68 and 4,427.01

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Solution

The fourth proportional to 7,964.25, 10,989.68 and 4,427.01 is: 6,108.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.25 : 10,989.68 = 4,427.01 : x
  2. Step 2: Convert to fraction form
    7,964.25/10,989.68 = 4,427.01/x
  3. Step 3: Cross multiply
    7,964.25x = 10,989.68 × 4,427.01
  4. Step 4: Simplify right side
    7,964.25x = 48,651,401.12
  5. Step 5: Solve for x
    x = 48,651,401.12/7,964.25
  6. Step 6: Final answer
    x = 6,108.72

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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.