Home / 6,421.81-8,862.16-3,769.26

Finding the Fourth Proportional to 6,421.81, 8,862.16 and 3,769.26

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Solution

The fourth proportional to 6,421.81, 8,862.16 and 3,769.26 is: 5,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.81 : 8,862.16 = 3,769.26 : x
  2. Step 2: Convert to fraction form
    6,421.81/8,862.16 = 3,769.26/x
  3. Step 3: Cross multiply
    6,421.81x = 8,862.16 × 3,769.26
  4. Step 4: Simplify right side
    6,421.81x = 33,403,785.20
  5. Step 5: Solve for x
    x = 33,403,785.20/6,421.81
  6. Step 6: Final answer
    x = 5,201.62

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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.