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Finding the Fourth Proportional to 4,983.84, 7,473.12 and 1,520.16

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Solution

The fourth proportional to 4,983.84, 7,473.12 and 1,520.16 is: 2,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.84 : 7,473.12 = 1,520.16 : x
  2. Step 2: Convert to fraction form
    4,983.84/7,473.12 = 1,520.16/x
  3. Step 3: Cross multiply
    4,983.84x = 7,473.12 × 1,520.16
  4. Step 4: Simplify right side
    4,983.84x = 11,360,338.10
  5. Step 5: Solve for x
    x = 11,360,338.10/4,983.84
  6. Step 6: Final answer
    x = 2,279.43

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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.