Home / 7,958.04-10,984.32-4,972.20

Finding the Fourth Proportional to 7,958.04, 10,984.32 and 4,972.20

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Solution

The fourth proportional to 7,958.04, 10,984.32 and 4,972.20 is: 6,863.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.04 : 10,984.32 = 4,972.20 : x
  2. Step 2: Convert to fraction form
    7,958.04/10,984.32 = 4,972.20/x
  3. Step 3: Cross multiply
    7,958.04x = 10,984.32 × 4,972.20
  4. Step 4: Simplify right side
    7,958.04x = 54,616,235.90
  5. Step 5: Solve for x
    x = 54,616,235.90/7,958.04
  6. Step 6: Final answer
    x = 6,863.03

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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.