Home / 6,989.90-10,484.77-2,828.77

Finding the Fourth Proportional to 6,989.90, 10,484.77 and 2,828.77

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Solution

The fourth proportional to 6,989.90, 10,484.77 and 2,828.77 is: 4,243.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.90 : 10,484.77 = 2,828.77 : x
  2. Step 2: Convert to fraction form
    6,989.90/10,484.77 = 2,828.77/x
  3. Step 3: Cross multiply
    6,989.90x = 10,484.77 × 2,828.77
  4. Step 4: Simplify right side
    6,989.90x = 29,659,025.87
  5. Step 5: Solve for x
    x = 29,659,025.87/6,989.90
  6. Step 6: Final answer
    x = 4,243.13

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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.