Home / 6,881.90-10,310.70-5,642.60

Finding the Fourth Proportional to 6,881.90, 10,310.70 and 5,642.60

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Solution

The fourth proportional to 6,881.90, 10,310.70 and 5,642.60 is: 8,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.90 : 10,310.70 = 5,642.60 : x
  2. Step 2: Convert to fraction form
    6,881.90/10,310.70 = 5,642.60/x
  3. Step 3: Cross multiply
    6,881.90x = 10,310.70 × 5,642.60
  4. Step 4: Simplify right side
    6,881.90x = 58,179,155.82
  5. Step 5: Solve for x
    x = 58,179,155.82/6,881.90
  6. Step 6: Final answer
    x = 8,453.94

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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.