Home / 4,128.81-6,193.77-1,207.07

Finding the Fourth Proportional to 4,128.81, 6,193.77 and 1,207.07

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Solution

The fourth proportional to 4,128.81, 6,193.77 and 1,207.07 is: 1,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.81 : 6,193.77 = 1,207.07 : x
  2. Step 2: Convert to fraction form
    4,128.81/6,193.77 = 1,207.07/x
  3. Step 3: Cross multiply
    4,128.81x = 6,193.77 × 1,207.07
  4. Step 4: Simplify right side
    4,128.81x = 7,476,324.91
  5. Step 5: Solve for x
    x = 7,476,324.91/4,128.81
  6. Step 6: Final answer
    x = 1,810.77

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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.