Home / 7,250.98-10,878.40-2,320.72

Finding the Fourth Proportional to 7,250.98, 10,878.40 and 2,320.72

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Solution

The fourth proportional to 7,250.98, 10,878.40 and 2,320.72 is: 3,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.98 : 10,878.40 = 2,320.72 : x
  2. Step 2: Convert to fraction form
    7,250.98/10,878.40 = 2,320.72/x
  3. Step 3: Cross multiply
    7,250.98x = 10,878.40 × 2,320.72
  4. Step 4: Simplify right side
    7,250.98x = 25,245,720.45
  5. Step 5: Solve for x
    x = 25,245,720.45/7,250.98
  6. Step 6: Final answer
    x = 3,481.70

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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.