Home / 4,752.30-7,131.54-2,155.26

Finding the Fourth Proportional to 4,752.30, 7,131.54 and 2,155.26

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Solution

The fourth proportional to 4,752.30, 7,131.54 and 2,155.26 is: 3,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.30 : 7,131.54 = 2,155.26 : x
  2. Step 2: Convert to fraction form
    4,752.30/7,131.54 = 2,155.26/x
  3. Step 3: Cross multiply
    4,752.30x = 7,131.54 × 2,155.26
  4. Step 4: Simplify right side
    4,752.30x = 15,370,322.90
  5. Step 5: Solve for x
    x = 15,370,322.90/4,752.30
  6. Step 6: Final answer
    x = 3,234.29

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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.