Home / 7,481.87-10,321.17-5,710.40

Finding the Fourth Proportional to 7,481.87, 10,321.17 and 5,710.40

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Solution

The fourth proportional to 7,481.87, 10,321.17 and 5,710.40 is: 7,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.87 : 10,321.17 = 5,710.40 : x
  2. Step 2: Convert to fraction form
    7,481.87/10,321.17 = 5,710.40/x
  3. Step 3: Cross multiply
    7,481.87x = 10,321.17 × 5,710.40
  4. Step 4: Simplify right side
    7,481.87x = 58,938,009.17
  5. Step 5: Solve for x
    x = 58,938,009.17/7,481.87
  6. Step 6: Final answer
    x = 7,877.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.