Home / 6,989.45-9,644.83-4,117.70

Finding the Fourth Proportional to 6,989.45, 9,644.83 and 4,117.70

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Solution

The fourth proportional to 6,989.45, 9,644.83 and 4,117.70 is: 5,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.45 : 9,644.83 = 4,117.70 : x
  2. Step 2: Convert to fraction form
    6,989.45/9,644.83 = 4,117.70/x
  3. Step 3: Cross multiply
    6,989.45x = 9,644.83 × 4,117.70
  4. Step 4: Simplify right side
    6,989.45x = 39,714,530.31
  5. Step 5: Solve for x
    x = 39,714,530.31/6,989.45
  6. Step 6: Final answer
    x = 5,682.07

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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.