Home / 4,752.14-7,128.22-2,118.97

Finding the Fourth Proportional to 4,752.14, 7,128.22 and 2,118.97

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Solution

The fourth proportional to 4,752.14, 7,128.22 and 2,118.97 is: 3,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.14 : 7,128.22 = 2,118.97 : x
  2. Step 2: Convert to fraction form
    4,752.14/7,128.22 = 2,118.97/x
  3. Step 3: Cross multiply
    4,752.14x = 7,128.22 × 2,118.97
  4. Step 4: Simplify right side
    4,752.14x = 15,104,461.22
  5. Step 5: Solve for x
    x = 15,104,461.22/4,752.14
  6. Step 6: Final answer
    x = 3,178.45

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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.