Home / 4,747.64-7,120.62-1,285.16

Finding the Fourth Proportional to 4,747.64, 7,120.62 and 1,285.16

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Solution

The fourth proportional to 4,747.64, 7,120.62 and 1,285.16 is: 1,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.64 : 7,120.62 = 1,285.16 : x
  2. Step 2: Convert to fraction form
    4,747.64/7,120.62 = 1,285.16/x
  3. Step 3: Cross multiply
    4,747.64x = 7,120.62 × 1,285.16
  4. Step 4: Simplify right side
    4,747.64x = 9,151,136.00
  5. Step 5: Solve for x
    x = 9,151,136.00/4,747.64
  6. Step 6: Final answer
    x = 1,927.51

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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.