Home / 4,752.37-7,128.55-1,289.62

Finding the Fourth Proportional to 4,752.37, 7,128.55 and 1,289.62

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Solution

The fourth proportional to 4,752.37, 7,128.55 and 1,289.62 is: 1,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.37 : 7,128.55 = 1,289.62 : x
  2. Step 2: Convert to fraction form
    4,752.37/7,128.55 = 1,289.62/x
  3. Step 3: Cross multiply
    4,752.37x = 7,128.55 × 1,289.62
  4. Step 4: Simplify right side
    4,752.37x = 9,193,120.65
  5. Step 5: Solve for x
    x = 9,193,120.65/4,752.37
  6. Step 6: Final answer
    x = 1,934.43

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Similar ratio
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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.