Home / 4,751.88-7,130.58-2,155.08

Finding the Fourth Proportional to 4,751.88, 7,130.58 and 2,155.08

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Solution

The fourth proportional to 4,751.88, 7,130.58 and 2,155.08 is: 3,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.88 : 7,130.58 = 2,155.08 : x
  2. Step 2: Convert to fraction form
    4,751.88/7,130.58 = 2,155.08/x
  3. Step 3: Cross multiply
    4,751.88x = 7,130.58 × 2,155.08
  4. Step 4: Simplify right side
    4,751.88x = 15,366,970.35
  5. Step 5: Solve for x
    x = 15,366,970.35/4,751.88
  6. Step 6: Final answer
    x = 3,233.87

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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.