Home / 6,239.72-8,610.64-3,407.18

Finding the Fourth Proportional to 6,239.72, 8,610.64 and 3,407.18

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Solution

The fourth proportional to 6,239.72, 8,610.64 and 3,407.18 is: 4,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.72 : 8,610.64 = 3,407.18 : x
  2. Step 2: Convert to fraction form
    6,239.72/8,610.64 = 3,407.18/x
  3. Step 3: Cross multiply
    6,239.72x = 8,610.64 × 3,407.18
  4. Step 4: Simplify right side
    6,239.72x = 29,338,000.40
  5. Step 5: Solve for x
    x = 29,338,000.40/6,239.72
  6. Step 6: Final answer
    x = 4,701.81

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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.