Home / 7,890.87-10,884.81-5,057.24

Finding the Fourth Proportional to 7,890.87, 10,884.81 and 5,057.24

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Solution

The fourth proportional to 7,890.87, 10,884.81 and 5,057.24 is: 6,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.87 : 10,884.81 = 5,057.24 : x
  2. Step 2: Convert to fraction form
    7,890.87/10,884.81 = 5,057.24/x
  3. Step 3: Cross multiply
    7,890.87x = 10,884.81 × 5,057.24
  4. Step 4: Simplify right side
    7,890.87x = 55,047,044.03
  5. Step 5: Solve for x
    x = 55,047,044.03/7,890.87
  6. Step 6: Final answer
    x = 6,976.04

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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.