Home / 6,386.43-8,810.60-4,149.15

Finding the Fourth Proportional to 6,386.43, 8,810.60 and 4,149.15

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Solution

The fourth proportional to 6,386.43, 8,810.60 and 4,149.15 is: 5,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.43 : 8,810.60 = 4,149.15 : x
  2. Step 2: Convert to fraction form
    6,386.43/8,810.60 = 4,149.15/x
  3. Step 3: Cross multiply
    6,386.43x = 8,810.60 × 4,149.15
  4. Step 4: Simplify right side
    6,386.43x = 36,556,480.24
  5. Step 5: Solve for x
    x = 36,556,480.24/6,386.43
  6. Step 6: Final answer
    x = 5,724.09

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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.