Home / 4,752.12-7,128.56-1,630.87

Finding the Fourth Proportional to 4,752.12, 7,128.56 and 1,630.87

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Solution

The fourth proportional to 4,752.12, 7,128.56 and 1,630.87 is: 2,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.12 : 7,128.56 = 1,630.87 : x
  2. Step 2: Convert to fraction form
    4,752.12/7,128.56 = 1,630.87/x
  3. Step 3: Cross multiply
    4,752.12x = 7,128.56 × 1,630.87
  4. Step 4: Simplify right side
    4,752.12x = 11,625,754.65
  5. Step 5: Solve for x
    x = 11,625,754.65/4,752.12
  6. Step 6: Final answer
    x = 2,446.44

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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.