Home / 6,917.79-10,379.29-4,146.45

Finding the Fourth Proportional to 6,917.79, 10,379.29 and 4,146.45

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Solution

The fourth proportional to 6,917.79, 10,379.29 and 4,146.45 is: 6,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.79 : 10,379.29 = 4,146.45 : x
  2. Step 2: Convert to fraction form
    6,917.79/10,379.29 = 4,146.45/x
  3. Step 3: Cross multiply
    6,917.79x = 10,379.29 × 4,146.45
  4. Step 4: Simplify right side
    6,917.79x = 43,037,207.02
  5. Step 5: Solve for x
    x = 43,037,207.02/6,917.79
  6. Step 6: Final answer
    x = 6,221.24

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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.